Registration Dossier

Identification

Display Name:
Tangor, Murcote, ext.
EC Number:
297-672-2
EC Name:
Tangor, Murcote, ext.
CAS Number:
93686-22-7
Molecular formula:
This reference substance is a UVCB of the NCS type. It is a complex mixture of compounds and therefore molecular formula, molcular weight, and structural formula cannot be given.
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-1-ene

Type of substance

Composition:
UVCB
Origin:
other: Natural Complex Substance (NCS)

Total tonnage band

Total range:
10 - 100 tonnes per annum

REACH

Registered as:
FULL
Submitted:
Joint Submission

Publication dates

First published:
17-Aug-2016
Last modified:
24-May-2020

Chemical safety assessment

Performed for this substance:
YES

Compositions open all close all

Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 4
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 5
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 6
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 7
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 8
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 9
Reference substance name:
Unknown and minor constituents in Tangerine oil
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown and minor constituents in Tangerine oil
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 4
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 5
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 6
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 7
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 8
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 9
Reference substance name:
Unknown and minor constituents in Tangerine oil
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown and minor constituents in Tangerine oil
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 4
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 5
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 6
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 7
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
boundary composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 2
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 3
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 4
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 5
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 6
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 7
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 8
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 2
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 3
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 4
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 5
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 6
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 7
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 8
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 2
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 3
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 4
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 5
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 6
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 7
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 8
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 4
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 5
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 6
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 7
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 8
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 4
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 5
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 6
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 7
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 8
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 4
Chemical structure
Reference substance name:
Thuj-4(10)-ene
EC Number:
222-212-4
EC Name:
Thuj-4(10)-ene
CAS Number:
3387-41-5
Molecular formula:
C10H16
IUPAC Name:
Bicyclo(3.1.0)hexane, 4-methylene-1-(1-methylethyl)
Constituent 5
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 6
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 7
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 8
Chemical structure
Reference substance name:
(1S,8aR)-4,7-dimethyl-1-propan-2-yl-1,2,3,5,6,8a-hexahydronaphthalene
CAS Number:
483-76-1
Molecular formula:
C15H24
IUPAC Name:
(1S,8aR)-4,7-dimethyl-1-propan-2-yl-1,2,3,5,6,8a-hexahydronaphthalene
Constituent 9
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 10
Chemical structure
Reference substance name:
p-cymene
EC Number:
202-796-7
EC Name:
p-cymene
CAS Number:
99-87-6
Molecular formula:
C10H14
IUPAC Name:
1-methyl-4-propan-2-ylbenzene
Constituent 11
Chemical structure
Reference substance name:
Citronellal
EC Number:
203-376-6
EC Name:
Citronellal
CAS Number:
106-23-0
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethyloct-6-enal
Constituent 12
Chemical structure
Reference substance name:
p-menth-1-en-8-ol
EC Number:
202-680-6
EC Name:
p-menth-1-en-8-ol
CAS Number:
98-55-5
Molecular formula:
C10H18O
IUPAC Name:
2-(4-methyl-1-cyclohex-3-enyl)propan-2-ol
Constituent 13
Chemical structure
Reference substance name:
p-mentha-1,5-diene
EC Number:
202-792-5
EC Name:
p-mentha-1,5-diene
CAS Number:
99-83-2
Molecular formula:
C10H16
IUPAC Name:
5-isopropyl-2-methylcyclohexa-1,3-diene
Constituent 14
Chemical structure
Reference substance name:
(1α,2β,4β)-1-methyl-2,4-bis(methylvinyl)-1-vinylcyclohexane
EC Number:
251-713-0
EC Name:
(1α,2β,4β)-1-methyl-2,4-bis(methylvinyl)-1-vinylcyclohexane
CAS Number:
33880-83-0
Molecular formula:
C15H24
IUPAC Name:
2,4-diisopropenyl-1-methyl-1-vinylcyclohexane
Constituent 15
Chemical structure
Reference substance name:
p-mentha-1,3-diene
EC Number:
202-795-1
EC Name:
p-mentha-1,3-diene
CAS Number:
99-86-5
Molecular formula:
C10H16
IUPAC Name:
1-methyl-4-propan-2-ylcyclohexa-1,3-diene
Constituent 16
Chemical structure
Reference substance name:
8-isopropyl-1,3-dimethyltricyclo[4.4.0.02,7]dec-3-ene
EC Number:
223-364-4
EC Name:
8-isopropyl-1,3-dimethyltricyclo[4.4.0.02,7]dec-3-ene
CAS Number:
3856-25-5
Molecular formula:
C15H24
IUPAC Name:
8-isopropyl-1,3-dimethyltricyclo[4.4.0.02,7]dec-3-ene
Constituent 17
Chemical structure
Reference substance name:
(E)-3,7-dimethylocta-1,3,6-triene
EC Number:
223-241-5
EC Name:
(E)-3,7-dimethylocta-1,3,6-triene
CAS Number:
3779-61-1
Molecular formula:
C10H16
IUPAC Name:
(E)-3,7-dimethylocta-1,3,6-triene
Constituent 18
Chemical structure
Reference substance name:
(3R,4aS,8aR)-8a-methyl-5-methylidene-3-prop-1-en-2-yl-1,2,3,4,4a,6,7,8-octahydronaphthalene
CAS Number:
17066-67-0
Molecular formula:
C15H24
IUPAC Name:
(3R,4aS,8aR)-8a-methyl-5-methylidene-3-prop-1-en-2-yl-1,2,3,4,4a,6,7,8-octahydronaphthalene
Constituent 19
Chemical structure
Reference substance name:
3,7,7-trimethylbicyclo[4.1.0]hept-3-ene
EC Number:
236-719-3
EC Name:
3,7,7-trimethylbicyclo[4.1.0]hept-3-ene
CAS Number:
13466-78-9
Molecular formula:
C10H16
IUPAC Name:
3,7,7-trimethylbicyclo[4.1.0]hept-3-ene
Constituent 20
Chemical structure
Reference substance name:
5-isopropyl-2-methylbicyclo[3.1.0]hex-2-ene
EC Number:
220-686-7
EC Name:
5-isopropyl-2-methylbicyclo[3.1.0]hex-2-ene
CAS Number:
2867-05-2
Molecular formula:
C10H16
IUPAC Name:
5-isopropyl-2-methylbicyclo[3.1.0]hex-2-ene
Constituent 21
Reference substance name:
Unknown constituents/impurities
CAS Number:
Unknown - Not applicable
Molecular formula:
Unknown - Not applicable
IUPAC Name:
Unknown constituents/impurities
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 2
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 3
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 4
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 5
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 6
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 7
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 8
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 2
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 3
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 4
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 5
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 6
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 7
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 8
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
boundary composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 4
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 5
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 6
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 7
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 8
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 9
Reference substance name:
Unknown and minor constituents in Tangerine oil
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown and minor constituents in Tangerine oil
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 2
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 3
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 4
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 5
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 6
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 7
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 8
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 4
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 5
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 6
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 7
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 8
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 9
Reference substance name:
Unknown and minor constituents in Tangerine oil
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown and minor constituents in Tangerine oil
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 2
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 3
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 4
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 5
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 6
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 7
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 8
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 3
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 4
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 5
Chemical structure
Reference substance name:
Pin-2(3)-ene
EC Number:
201-291-9
EC Name:
Pin-2(3)-ene
CAS Number:
80-56-8
Molecular formula:
C10H16
IUPAC Name:
4,7,7-trimethylbicyclo[3.1.1]hept-3-ene
Constituent 6
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 7
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 8
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 9
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2
Chemical structure
Reference substance name:
p-mentha-1,4-diene
EC Number:
202-794-6
EC Name:
p-mentha-1,4-diene
CAS Number:
99-85-4
Molecular formula:
C10H16
IUPAC Name:
1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Constituent 3
Chemical structure
Reference substance name:
Linalool
EC Number:
201-134-4
EC Name:
Linalool
CAS Number:
78-70-6
Molecular formula:
C10H18O
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-ol
Constituent 4
Chemical structure
Reference substance name:
Decanal
EC Number:
203-957-4
EC Name:
Decanal
CAS Number:
112-31-2
Molecular formula:
C10H20O
IUPAC Name:
1-decyl aldehyde
Constituent 5
Chemical structure
Reference substance name:
7-methyl-3-methyleneocta-1,6-diene
EC Number:
204-622-5
EC Name:
7-methyl-3-methyleneocta-1,6-diene
CAS Number:
123-35-3
Molecular formula:
C10H16
IUPAC Name:
7-methyl-3-methylideneocta-1,6-diene
Constituent 6
Chemical structure
Reference substance name:
Citral
EC Number:
226-394-6
EC Name:
Citral
CAS Number:
5392-40-5
Molecular formula:
C10H16O
IUPAC Name:
3,7-Dimethyl-2,6-octadienal
Constituent 7
Chemical structure
Reference substance name:
Pin-2(10)-ene
EC Number:
204-872-5
EC Name:
Pin-2(10)-ene
CAS Number:
127-91-3
Molecular formula:
C10H16
IUPAC Name:
6,6-dimethyl-2-methylidenebicyclo[3.1.1]heptane
Constituent 8
Reference substance name:
Unknown constituents
Molecular formula:
not applicable: unknown UVCB constituents
IUPAC Name:
Unknown constituents
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
(R)-p-mentha-1,8-diene
EC Number:
227-813-5
EC Name:
(R)-p-mentha-1,8-diene
CAS Number:
5989-27-5
Molecular formula:
C10H16
IUPAC Name:
(4R)-1-methyl-4-(prop-1-en-2-yl)cyclohexene
Constituent 2