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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: OECD-Guideline Study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1983

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl-1H-benzotriazole
EC Number:
249-596-6
EC Name:
Methyl-1H-benzotriazole
Cas Number:
29385-43-1
Molecular formula:
C7H7N3
IUPAC Name:
5-methyl-1H-1,2,3-benzotriazole
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
- Name of test material (as cited in study report): Preventol C/7-100
- Physical state: solid

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Hacking & Churchill Ltd., Huntingdon, UK
- Housing: single cages
- Diet: Ssniff K 4, ad libitum
- Water: ad libitum

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19 - 25 °C
- Humidity (%): 40 - 60 %
- Photoperiod (hrs dark / hrs light): 12

Test system

Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
substance with a volume of approx. 100 µl
Duration of treatment / exposure:
24 hours unwashed, then washing with physiological saline
Observation period (in vivo):
7 days
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing: with physiological saline
- Time after start of exposure: 24 h

SCORING SYSTEM: Draize

TOOL USED TO ASSESS SCORE: optical devices / fluorescein

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
7 d
Score:
0
Max. score:
110
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
mean
Time point:
72 h
Score:
0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
48 h
Score:
1
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
animal: #1, #3
Time point:
48 h
Score:
0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
mean
Time point:
24 h
Score:
1
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
72 h
Score:
0
Max. score:
3
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
48 h
Score:
1
Max. score:
3
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
24 h
Score:
1
Max. score:
3
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Basis:
animal: #1, #2
Time point:
24 h
Score:
2
Max. score:
3
Reversibility:
fully reversible
Irritation parameter:
iris score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
72 h
Score:
0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
24/48 h
Score:
1
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
cornea opacity score
Basis:
animal: #1, #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
fully reversible

Applicant's summary and conclusion

Interpretation of results:
slightly irritating
Remarks:
Migrated information Criteria used for interpretation of results: expert judgment
Conclusions:
The test item is mildly irritant to the rabbits eye.