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Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Not reported
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Information from migrated NONS file, as per inquiry number 06-2120030080-80-0000 permission to refer granted by ECHA.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1986
Report date:
1986

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.6 (Skin Sensitisation)
Version / remarks:
Reported as "Annex V (Maximisation test)"
GLP compliance:
yes
Type of study:
guinea pig maximisation test

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
400-820-2
EC Name:
-
Cas Number:
84268-33-7
Molecular formula:
C20H23N3O3
IUPAC Name:
methyl 3-[3-(2H-1,2,3-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl]propanoate

In vivo test system

Test animals

Species:
guinea pig
Strain:
not specified
Sex:
not specified

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
intradermal
Vehicle:
other: intradermal - sesame oil and adjuvent mixture; epidermal - vaseline
Concentration / amount:
Concentration of test material and vehicle used at induction:
Intradermal: 1% in sesame oil and in adjuvant mixture
Epidermal: 20% in vaseline

Concentration of test material and vehicle used for each challenge: 10% in vaseline
Challengeopen allclose all
Route:
epicutaneous, open
Vehicle:
other: intradermal - sesame oil and adjuvent mixture; epidermal - vaseline
Concentration / amount:
Concentration of test material and vehicle used at induction:
Intradermal: 1% in sesame oil and in adjuvant mixture
Epidermal: 20% in vaseline

Concentration of test material and vehicle used for each challenge: 10% in vaseline
No. of animals per dose:
20 (test group)
10 (negative control group)
Positive control substance(s):
not specified

Results and discussion

Any other information on results incl. tables

Signs of irritation during induction: None

Evidence of sensitisation of each challenge concentration: None

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
There was no evidence of sensitisation at any challenge concentration tested and as such the substance was determined to be a non-sensitiser.
Executive summary:

In a study conducted in accordance with the Standard Annex V method (Maximisation test) under conditions of GLP, the substance did not elicit any signs of sensitisation at any concentration tested and therefore is considered to be a non-sensitiser.