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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

Toxicological information

Acute Toxicity: dermal

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Justification for type of information:
Data is from OECD SIDS.

Data source

Reference
Reference Type:
secondary source
Title:
SIDS Initial Assessment Profile.
Author:
United Nations Environmental Programme (UNEP)
Year:
2003
Bibliographic source:
SIDS Initial Assessment Profile, United Nations Environmental Programme (UNEP), 2003.

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: As mentioned below
Principles of method if other than guideline:
The acute Dermal toxicity test of test chemical in rat.
GLP compliance:
not specified
Test type:
other: not specified
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
EC Number:
225-822-9
EC Name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
Cas Number:
5102-83-0
Molecular formula:
C36H34Cl2N6O4
IUPAC Name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
Details on test material:
Name: 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
InChI:1S/C36H34Cl2N6O4/c1-19-7-11-29(21(3)15-19)39-35(47)33(23(5)45)43-41-31-13-9-25(17-27(31)37)26-10-14-32(28(38)18-26)42-44-34(24(6)46)36(48)40-30-12-8-20(2)16-22(30)4/h7-18,33-34H,1-6H3,(H,39,47)(H,40,48)/b43-41+,44-42+
Smiles: C([C@@H](\N=N\c1c(cc(cc1)c1cc(Cl)c(\N=N\ [C@@H](C(Nc2c(cc(cc2)C)C)=O)C(=O)C)cc1)Cl) C(=O)C)(Nc1c(cc(cc1)C)C)=O
- Name of test material (as cited in study report):Pigment Yellow 13
- Molecular formula (if other than submission substance):C36H34Cl2N6O4
- Molecular weight (if other than submission substance):685.609 g/mol
- Substance type:Organic

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
not specified

Administration / exposure

Type of coverage:
other: Dermal
Vehicle:
unchanged (no vehicle)
Details on dermal exposure:
not specified
Duration of exposure:
not specified
Doses:
3000 mg/kg
No. of animals per sex per dose:
not specified
Control animals:
not specified
Details on study design:
not specified
Statistics:
not specified

Results and discussion

Preliminary study:
not specified
Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
> 3 000 mg/kg bw
Based on:
test mat.
Remarks on result:
other: No mortality was observed
Mortality:
No mortality was observed at 3000 mg/kg bw.
Clinical signs:
not specified
Body weight:
not specified
Gross pathology:
not specified
Other findings:
not specified

Applicant's summary and conclusion

Interpretation of results:
other: Not classified
Conclusions:
The acute Dermal LD50 value was considered to be >3000 mg/kg bw, when rats were treated with test chemical by dermal application to the skin.
Executive summary:

Acute Dermal toxicity study of test chemical was conducted in rats at the concentration of 3000 mg/kg bw. No mortality was observed in treated rats at 3000 mg/kg bw. Therefore, LD50 was considered to be >3000 mg/kg bw, when rats were treated with test chemical by dermal application to the skin.