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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1988

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: 84/449/EWG, B.4; OECD 404 (1981)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
402-400-4
EC Name:
-
Cas Number:
54660-00-3
Molecular formula:
C18H12N2O2
IUPAC Name:
3,6-diphenyl-1H,2H,4H,5H-pyrrolo[3,4-c]pyrrole-1,4-dione

Test animals

Species:
rabbit
Strain:
other: New Zealand White KFM (SPF-quality)

Test system

Type of coverage:
occlusive
Preparation of test site:
not specified
Vehicle:
other: Polyethylenglycol PEG 400
Controls:
not specified
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
4 h
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Remarks:
mean score 1
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
no data
Irritation parameter:
erythema score
Basis:
animal #2
Remarks:
mean score 2
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
no data
Irritation parameter:
erythema score
Basis:
animal #3
Remarks:
mean score 3
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
no data
Irritation parameter:
edema score
Basis:
animal #1
Remarks:
mean score 1
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
no data
Irritation parameter:
edema score
Basis:
animal #2
Remarks:
mean score 2
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
no data
Irritation parameter:
edema score
Basis:
animal #3
Remarks:
mean score 3
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Reversibility:
no data
Other effects:
The treated skin was stained orange, something which was considered in the evaluation of the study.

Applicant's summary and conclusion

Interpretation of results:
other: not classified