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Diss Factsheets

Toxicological information

Eye irritation

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Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1981-01-17 to 1981-02-06
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:
study report
Title:
Unnamed
Year:
1981
Report date:
1981

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: ETAD-Method
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Principles of method if other than guideline:
according to internal guideline 1562
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
N,N'-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-4,9-diyl)bis(benzamide)
EC Number:
205-044-6
EC Name:
N,N'-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-4,9-diyl)bis(benzamide)
Cas Number:
131-92-0
Molecular formula:
C42H23N3O6
IUPAC Name:
N,N'-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-4,9-diyl)bis(benzamide)
Test material form:
solid
Details on test material:
Vat Brown 3

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: HACKING & CHURCHILL, Huntingdon England
- Weight at study initiation: 3 - 4kg
- Housing: individually in cages (MEISTER and SCHINDLER)
- Diet (e.g. ad libitum): rabbit feeding Z222 (Höing), ad libitum
- Water (e.g. ad libitum): water ad libitum

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 100mg
Observation period (in vivo):
1, 24, 48, 72h and 7d, 14d and 21d
Number of animals or in vitro replicates:
6

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
iris score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
2
Remarks on result:
no indication of irritation
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
24/48/72 h
Score:
0.11
Max. score:
3
Reversibility:
fully reversible within: 48h
Remarks on result:
no indication of irritation
Irritation parameter:
chemosis score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
Slight conjunctivae redness occurred in 1/6 animals at 1h but was completely reversible within 48 h. No other signs of irritation/corrosion observed.

Any other information on results incl. tables

endpoint average score per observation time and endpoint
24h 48h 72h
cornea opacity 0.0 0.0 0.0
iris value 0.0 0.0 0.0
conjuctiva redness 0.3 0.0 0.0
chemosis 0.0 0.0 0.0

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
No significant signs of irritation related to the substance were observed in rabbit eyes. The substance is not classifiable according to CLP criteria.