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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002

Materials and methods

GLP compliance:
yes
Type of study:
guinea pig maximisation test

Test material

Constituent 1
Chemical structure
Reference substance name:
5-chloro-4-(4-methylphenyl)-1H-imidazole-2-carbonitrile
EC Number:
601-672-3
Cas Number:
120118-14-1
Molecular formula:
C11H8ClN3
IUPAC Name:
5-chloro-4-(4-methylphenyl)-1H-imidazole-2-carbonitrile

In vivo test system

Test animals

Species:
guinea pig
Strain:
other: SPF-bred guinea pigs of the strain Hsd Poc:DH
Sex:
male

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
intradermal and epicutaneous
Vehicle:
polyethylene glycol
Concentration / amount:
intradermal induction: 5 % (= 20 mg CCIM/animal)
topical induction: 25 % (= 125 mg/animal)
challenge: 12 % (= 60 mg/animal)
Challengeopen allclose all
Route:
epicutaneous, occlusive
Vehicle:
polyethylene glycol
Concentration / amount:
intradermal induction: 5 % (= 20 mg CCIM/animal)
topical induction: 25 % (= 125 mg/animal)
challenge: 12 % (= 60 mg/animal)
No. of animals per dose:
10 male animals for the test item group
5 male animals for the control

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Hours after challenge:
48
Group:
test chemical
Dose level:
12 %
No. with + reactions:
0
Total no. in group:
10
Remarks on result:
other: . Hours after challenge: 48.0. Group: test group. Dose level: 12 %. No with. + reactions: 0.0. Total no. in groups: 10.0.
Hours after challenge:
72
Group:
test chemical
Dose level:
12 %
No. with + reactions:
0
Total no. in group:
10
Remarks on result:
other: . Hours after challenge: 72.0. Group: test group. Dose level: 12 %. No with. + reactions: 0.0. Total no. in groups: 10.0.

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information