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Toxicological information

Skin irritation / corrosion

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to Guideline study with acceptable restrictions (non-GLP).

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1975
Report Date:
1975

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Deviations:
yes
Remarks:
24 h exposure; 48h scoring is missing.
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): trade name
- Ethoxylation degree: 2
- Physical state: White solid
- Analytical purity: 100% a.i. (info by sponsor)
- Lot/batch No.: No data
- Storage condition of test material: No data

Test animals

Species:
rabbit
Strain:
other: only "albino rabbit" reported
Details on test animals and environmental conditions:
No data.

Test system

Type of coverage:
semiocclusive
Preparation of test site:
other: shaved and abraded, but only scores of shaved skin were considered.
Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
0.5 mL
Duration of treatment / exposure:
24 h
Observation period:
72 h
Number of animals:
6

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Remarks:
out of 6 animals
Time point:
other: mean (24,48,72 h)
Score:
0
Max. score:
4
Remarks on result:
other: No 48 h data are available; for calculation of mean scores, the 48 h values were assumed to be the same as those at 24 h (worst case assumption: persistence of effects seen at 24 h over 48 h).
Irritation parameter:
edema score
Basis:
mean
Remarks:
out of 6 animals
Time point:
other: mean (24,48,72 h)
Score:
0
Max. score:
4
Remarks on result:
other: No 48 h data are available; for calculation of mean scores, the 48 h values were assumed to be the same as those at 24 h (worst case assumption: persistence of effects seen at 24 h over 48 h).

Applicant's summary and conclusion

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