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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10.11.1995 - 17.11.1995
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study with acceptable restrictions due to usage of an occlusive dressing.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1995
Report date:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Deviations:
yes
Remarks:
an occlusive dressing was used
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
O-benzyl-L-valine toluene-p-sulphonate
EC Number:
240-702-6
EC Name:
O-benzyl-L-valine toluene-p-sulphonate
Cas Number:
16652-76-9
Molecular formula:
C12H17NO2.C7H8O3S
IUPAC Name:
O-benzyl-L-valine toluene-p-sulphonate

Test animals

Species:
rabbit
Strain:
other: Chbb:HM (SPF)

Test system

Type of coverage:
occlusive
Preparation of test site:
clipped
Vehicle:
unchanged (no vehicle)
Controls:
other: not required, the untreated skin sites of each animal served as control
Duration of treatment / exposure:
4 h
Observation period:
72 h
reading time points: 1, 24, 48 and 72 h
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Remarks:
over all 3 animals
Time point:
other: mean over 24, 48 and 72h
Score:
0
Max. score:
4
Reversibility:
other: reversibility: not applicable
Irritation parameter:
edema score
Basis:
mean
Remarks:
over all 3 animal
Time point:
other: mean over 24, 48 and 72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility: not applicable

Any other information on results incl. tables

Clinical Signs: No clinical signs were induced.

Skin Examinations: No skin reactions were observed.

Body Weight: No influence on the body weight was noted.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
CLP: not classified
DSD: not classified