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Toxicological information

Skin irritation / corrosion

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1992
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
None

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1992
Report date:
1992

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
Principles of method if other than guideline:
None
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
Trisodium 4-({4-chloro-6-[(4-sulfonatophenyl)amino]-1,3,5-triazin-2-yl}amino)- 2-{[1-ethyl-2-hydroxy-4-methyl-6-oxo-5-(sulfonatomethyl)-1,6-dihydropyridin-3- yl]diazenyl}benzenesulfonate
Cas Number:
106359-90-4
IUPAC Name:
Trisodium 4-({4-chloro-6-[(4-sulfonatophenyl)amino]-1,3,5-triazin-2-yl}amino)- 2-{[1-ethyl-2-hydroxy-4-methyl-6-oxo-5-(sulfonatomethyl)-1,6-dihydropyridin-3- yl]diazenyl}benzenesulfonate
Test material form:
solid: particulate/powder
Details on test material:
None
Specific details on test material used for the study:
None

Test animals

Species:
rabbit
Strain:
other: Chbbibm: NZW (SPF)
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Dr. Karl Thomae GmbH Postfach 1755 0·7950 Biberach a.d. Riss
- Age at study initiation: 15 weeks
- Weight at study initiation: male : 2.8 kg females: 3.2 kg
- Housing: Individually in stainless steel cages (size: 86 x 54 x 33 em) equipped with feed hoppers and drinking water bottles.
- Diet (e.g. ad libitum): Pelleted standard Kliba 341, Batch 69/92 rabbit maintenance diet ("Kliba", Klingentalmuehle AG, CH-4303 Kaiseraugst), ad libitum.
- Water (e.g. ad libitum): Community tap water from FOllinsdorf, ad libitum
- Acclimation period: Five days under test conditions after veterinary examination. Only animals without any visual signs of illness were used for the study.

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20+-3°C
- Humidity (%): 40-70%
- Air changes (per hr): 10-15 air changes per hour
- Photoperiod (hrs dark / hrs light): 12 hours dark, music during the light period.

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
unchanged (no vehicle)
Controls:
yes
Amount / concentration applied:
0.5 g of substance was applied.
Duration of treatment / exposure:
4 hours
Observation period:
None
Number of animals:
1 male
2 females
Details on study design:
None

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Irritant / corrosive response data:
None
Other effects:
None

Any other information on results incl. tables

None

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
FAT 40000 is to be considered as a non-irritant to the skin of rabbits.
Executive summary:

A study was performed to determine the primary-irritation index, which serves as a measure of the acute irritation, provoked by the compound, FAT 40000, on the skin of the rabbits. 0.5 g of the test article was applied to approx. 6 cm² of the intact skin of the clipped area. It was covered with a 3.0 cm x 3.0 cm patch of surgical gauze. The gauze was covered with a semi-occlusive dressing. The dressing was wrapped around the abdomen and anchored with an elastic bandage. The duration of treatment was 4 hours. Then the dressing was removed and the skin was flushed with lukewarm-tap water. The animals were checked daily for systemic symptoms and mortality. The skin reactions were evaluated 1, 24, 48, and 72 hours after removing the gauze patches according to the OECD scoring system. The application site was yellow stained up to 24 hours after the application; therefore the evaluation of a possible erythema formation was impeded. Because no erythema reactions were observed at 4 8 to 72 hrs and no edema reactions at 24 to 72 hrs after removing the bandages, the test was ended after the 72 hours evaluation. According to the EC classification of the results obtained, FAT 40000/G can be classified as non-irritant in albino rabbits.