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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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study with acceptable restrictions (limited documentation, no data on test substance purity)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1968
Report date:
1968

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
yes
Remarks:
(limited documentation, no information on observation period)
Principles of method if other than guideline:
0.1 g of the unchanged test substance was introduced into the conjunctival sac of 6 rabbits. Scoring was recorded 24 h, 48 h and 72 h after application (Draize Test).
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol
EC Number:
221-573-5
EC Name:
2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol
Cas Number:
3147-75-9
Molecular formula:
C20H25N3O
IUPAC Name:
2-(2H-1,2,3-benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol
Test material form:
solid
Details on test material:
- Name of test material (as cited in study report): Ultraviolet Absorber P-541; Cyasorb UV-5411; 2-(2'-Hydroxy-5'-tert-octylphenyl) benzotriazole
- Physical state: solid
Specific details on test material used for the study:
- Name of test material (as cited in study report): Ultraviolet Absorber P-541; Cyasorb UV-5411; 2-(2'-Hydroxy-5'-tert-octylphenyl) benzotriazole
- Physical state: solid
- Analytical purity: no data

Test animals / tissue source

Species:
rabbit
Strain:
not specified
Details on test animals or tissues and environmental conditions:
no data

Test system

Vehicle:
unchanged (no vehicle)
Controls:
other: the adjacent eye served as control
Amount / concentration applied:
0.1 g
Duration of treatment / exposure:
one single application
Observation period (in vivo):
no data
Number of animals or in vitro replicates:
6
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing: no data

SCORING SYSTEM: according to the Draize Scoring System
(no chemosis scores were documented)

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Remarks:
out of all 6 animals
Time point:
other: mean over 24, 48 and 72 h
Score:
0
Max. score:
4
Reversibility:
other: not applicable
Irritation parameter:
iris score
Basis:
mean
Remarks:
out of all 6 animals
Time point:
other: mean over 24, 48 and 72 h
Score:
0
Max. score:
2
Reversibility:
other: not applicable
Irritation parameter:
conjunctivae score
Basis:
mean
Remarks:
out of all 6 animals
Time point:
other: mean over 24, 48 and 72 h
Score:
0
Max. score:
3
Reversibility:
other: not applicable
Other effects:
Chemosis score was not taken, but was normally included in the conjunctivae score.
Furthermore, the following information was given: No obvious swelling of the conjunctivae excluding cornea and iris with partial eversion of the lids was seen.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU