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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1997
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study according EU/OECD guideline

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 406 (Skin Sensitisation)
GLP compliance:
yes (incl. QA statement)
Type of study:
guinea pig maximisation test

Test material

Constituent 1
Chemical structure
Reference substance name:
4-chloro-N-cyclopentylbenzylamine
EC Number:
266-097-9
EC Name:
4-chloro-N-cyclopentylbenzylamine
Cas Number:
66063-15-8
Molecular formula:
C12H16ClN
IUPAC Name:
N-[(4-chlorophenyl)methyl]cyclopentanamine

In vivo test system

Test animals

Species:
guinea pig
Strain:
other: Hsd Poc:DH
Sex:
female

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
intradermal
Vehicle:
corn oil
Concentration / amount:
intradermal: 1% N-(4-Chlorbenzyl)-N-cyclopentylamin formulated in corn oil
epicuntaneous: 25% N-(4-Chlorbenzyl)-N-cyclopentylamin formulated in corn oil
challenge: 1% N-(4-Chlorbenzyl)-N-cyclopentylamin formulated in corn oil
Challengeopen allclose all
Route:
epicutaneous, semiocclusive
Vehicle:
corn oil
Concentration / amount:
intradermal: 1% N-(4-Chlorbenzyl)-N-cyclopentylamin formulated in corn oil
epicuntaneous: 25% N-(4-Chlorbenzyl)-N-cyclopentylamin formulated in corn oil
challenge: 1% N-(4-Chlorbenzyl)-N-cyclopentylamin formulated in corn oil
No. of animals per dose:
test group: 10 anmimals
control group: 5 animals

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Reading:
1st reading
Hours after challenge:
48
Group:
test chemical
Dose level:
1%
No. with + reactions:
1
Total no. in group:
10
Clinical observations:
Slight localized redness
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 48.0. Group: test group. Dose level: 1%. No with. + reactions: 1.0. Total no. in groups: 10.0. Clinical observations: Slight localized redness.
Reading:
2nd reading
Hours after challenge:
72
Group:
test chemical
Dose level:
1%
No. with + reactions:
1
Total no. in group:
10
Clinical observations:
Slight localized redness
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 72.0. Group: test group. Dose level: 1%. No with. + reactions: 1.0. Total no. in groups: 10.0. Clinical observations: Slight localized redness.

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information
Conclusions:
The challenge using a 1% test substance formulation led to slight skin effects (grade 1) in 1/10 animals in the treatment group and in 1/5 animals in the control group. As the effect in the test substance group was comparable with the effect in the control group, this skin effects were interpreted to be irritation reactions.
Executive summary:

Under the conditions of the maximization test and with respect to the evaluation criteria the test substance therefore thus exhibits no skin-sensitization potential.