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Diss Factsheets

Toxicological information

Skin irritation / corrosion

Currently viewing:

Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1983
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1983
Report date:
1983

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate
EC Number:
227-217-5
EC Name:
Methyl 2-[(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)ethylidene]-1,3,3-trimethylindoline-5-carboxylate
Cas Number:
5718-26-3
Molecular formula:
C25H25N3O3
IUPAC Name:
methyl 1,3,3-trimethyl-2-[2-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)ethylidene]indoline-5-carboxylate
Test material form:
solid
Specific details on test material used for the study:
Macrolex orange 51032 (Code Nr.: 826-152)
Solid powder

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
3 rabbits were used. Body weight approx. 2.9 kg, temperature 19-25 degree Celsius, 12/12 h dark/light rythm.

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
not required
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
4 h
Observation period:
14 days
Number of animals:
3 female rabbits

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
other: animal 1, 2 and 3
Time point:
other: 1, 24,48,72 h, 7 and 14 days
Score:
0
Max. score:
0
Reversibility:
fully reversible within:
Remarks on result:
no indication of irritation
Remarks:
due to the color of the substance erythema scoring was not possible for the first 4 time points.
Irritation parameter:
edema score
Basis:
other: animal 1, 2 and 3
Time point:
other: 1, 24,48, 72 h, 7 and 14 days
Score:
0
Max. score:
0
Reversibility:
fully reversible within:

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Executive summary:

In an in vivo dermal irritation study according to OECD TG 404 no erythema or edema were observed at any time point (1h to 14 days) after exposure to 500 mg to the skin.