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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1984
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: OECD 405 but non-GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1984
Report date:
1984

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Principles of method if other than guideline:
Method: Draize Test
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
N-phenylmaleimide
EC Number:
213-382-0
EC Name:
N-phenylmaleimide
Cas Number:
941-69-5
Molecular formula:
C10H7NO2
IUPAC Name:
1-phenyl-2,5-dihydro-1H-pyrrole-2,5-dione
Details on test material:
Purity:>99.9%

Test animals / tissue source

Species:
rabbit
Strain:
other: albino

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
undiluted
Amount applied: 0.1 other: gram
Duration of treatment / exposure:
0.5 minute(s)
Observation period (in vivo):
1 h, 24 h, 48 h, 72 h, 96 h, and 168 h
Number of animals or in vitro replicates:
6
Details on study design:
Comment: rinsed after (see exposure time)

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
overall irritation score
Basis:
mean
Remarks:
unwashed
Time point:
other: 24 h
Score:
57
Max. score:
57
Reversibility:
not fully reversible within: 168 h
Irritation parameter:
overall irritation score
Basis:
mean
Remarks:
unwashed
Time point:
other: 48 h after dosing
Score:
58.3
Max. score:
59
Reversibility:
not fully reversible within: 168 h
Irritation parameter:
overall irritation score
Basis:
mean
Remarks:
unwashed
Time point:
other: 72 h
Score:
57.7
Max. score:
59
Reversibility:
not fully reversible within: 168 h
Remarks on result:
other: Unwashed group
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 24, 48 & 72 hours
Score:
3
Max. score:
3
Reversibility:
not fully reversible within: 7 days
Remarks on result:
other: Unwashed group
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 24, 48 & 72 hours
Score:
0
Max. score:
0
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
other: 24, 48 & 72 hours
Score:
0.44
Max. score:
1
Reversibility:
not fully reversible within: 7 days
Remarks on result:
other: Unwashed group
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 24, 48 & 72 hours
Score:
3.89
Max. score:
4
Reversibility:
not fully reversible within: 7 days
Remarks on result:
other: Unwashed group
Irritant / corrosive response data:
Total Scores                 Hours after dosing                 
1h        24h     48h     72h     96h      168h
Eye washed #1     12        57        57        57        55        55
            #2     12        57        59        57        57        57
            #3     12        57        59        59        59        57
       Average   12.0      57.0      58.3      57.7      57.0      56.3
Eye non-washed #4    12         57         61         46         44         42
#5    12        44         44         44         40        40
#6    12        42         42         40         42        42
   Average    12.0      47.7      49.0      43.3      42.0      41.3
Other effects:
no data

Applicant's summary and conclusion

Interpretation of results:
corrosive
Remarks:
Migrated information Criteria used for interpretation of results: expert judgment
Conclusions:
Eye Irritation test: serious eye damage when non eye-washing after exposure and moderately irritating when eye-washing after exposure
Executive summary:

Eye Irritation test: serious eye damage when non eye-washing after exposure and moderately irritating when eye-washing after exposure