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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Toxicological information

Skin sensitisation

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Administrative data

Endpoint:
skin sensitisation: in vivo (LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
January 2000
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2000

Materials and methods

Test guideline
Qualifier:
no guideline available
Version / remarks:
A standard local lymph node assay (LLNA) protocol, as described previously, was used.
Principles of method if other than guideline:
A standard LLNA protocol was used.
GLP compliance:
not specified
Type of study:
mouse local lymph node assay (LLNA)

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl non-2-ynoate
EC Number:
203-909-2
EC Name:
Methyl non-2-ynoate
Cas Number:
111-80-8
Molecular formula:
C10H16O2
IUPAC Name:
methyl non-2-ynoate
Test material form:
liquid

In vivo test system

Test animals

Species:
mouse
Strain:
CBA/Ca
Sex:
female
Details on test animals and environmental conditions:
Animals were housed under standard conditions and all procedures were approved by the UK Home Office and carried out in compliance with the Animals (Scientific Procedures) Act 1986 under a Home Office granted Project License.

Study design: in vivo (non-LLNA)

No. of animals per dose:
4

Study design: in vivo (LLNA)

Vehicle:
other: Ethanol
Concentration:
80%

Results and discussion

In vivo (LLNA)

Resultsopen allclose all
Parameter:
SI
Value:
10.4
Test group / Remarks:
5%
Parameter:
SI
Value:
17.7
Test group / Remarks:
10%
Parameter:
SI
Value:
24.4
Test group / Remarks:
20%

Applicant's summary and conclusion

Interpretation of results:
Category 1A (indication of significant skin sensitising potential) based on GHS criteria
Executive summary:

According to the result in this publication, and with reference to the following studies, Methyl Octine Carbonate is considered to be a Skin Sensitiser.

ApiAM, FordRA. The use of guinea pig and human sensitization testing to determine the potential for allergic contact sensitization of methyl 2-nonynoate. J Derm Cli Eval Soc 1992: 3: 57

English J S C, Rycroft R J G. Allergic contact dermatitis from methyl heptine and methyl octine carbonates. Contact Dermatitis 1988: 18: 174–175.