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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2/06/2000-7/09/2000
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000
Report date:
2000

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
other: Good Laboratory Practice for Chemical Substances
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethyl 2-(4-hydroxyphenyl)-4-methyl-1,3-thiazole-5-carboxylate hydrochloride (1:1)
EC Number:
835-656-4
Cas Number:
399017-10-8
Molecular formula:
C13H14ClNO3S
IUPAC Name:
Ethyl 2-(4-hydroxyphenyl)-4-methyl-1,3-thiazole-5-carboxylate hydrochloride (1:1)

Test animals / tissue source

Species:
rabbit
Strain:
other: Japanese white strain (Kbs:JW)

Test system

Vehicle:
not specified
Controls:
not specified

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
24/48/72 h
Score:
ca. 3.33
Max. score:
4
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
24/48/72 h
Score:
ca. 3.33
Max. score:
4
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
24/48/72 h
Score:
ca. 3.33
Max. score:
4
Irritation parameter:
iris score
Basis:
animal #1
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
1
Irritation parameter:
iris score
Basis:
animal #2
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
1
Irritation parameter:
iris score
Basis:
animal #3
Time point:
24/48/72 h
Score:
ca. 1
Max. score:
1
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
24/48/72 h
Score:
ca. 3
Max. score:
3
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
24/48/72 h
Score:
ca. 3
Max. score:
3
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
24/48/72 h
Score:
ca. 3
Max. score:
3

Applicant's summary and conclusion

Interpretation of results:
Category 1 (irreversible effects on the eye) based on GHS criteria
Conclusions:
Thiazole Derivate is evaluated as a severe irritant with a corrosive effect on the eyes in rabbits under the present condition.