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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Acute Toxicity: dermal

Currently viewing:

Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1974
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
abstract

Data source

Reference
Reference Type:
other: Abstract
Title:
Unnamed
Year:
1974
Report date:
1974

Materials and methods

Test guideline
Qualifier:
no guideline followed
GLP compliance:
no
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrasodium 3,3'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(naphthalene-1,5-disulphonate)
EC Number:
229-158-0
EC Name:
Tetrasodium 3,3'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(naphthalene-1,5-disulphonate)
Cas Number:
6420-33-3
Molecular formula:
C37H28N6Na4O15S4
IUPAC Name:
tetrasodium 3-({4-[({4-[(4,8-disulfonato-2-naphthyl)diazenyl]-2-methoxy-5-methylphenyl}carbamoyl)amino]-5-methoxy-2-methylphenyl}diazenyl)naphthalene-1,5-disulfonate
Test material form:
solid: granular

Test animals

Species:
rat
Strain:
not specified
Sex:
male
Details on test animals or test system and environmental conditions:
no data

Administration / exposure

Type of coverage:
not specified
Vehicle:
not specified
Duration of exposure:
4 hours
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
5 males
Control animals:
not required
Details on study design:
no data

Results and discussion

Effect levelsopen allclose all
Sex:
male
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Key result
Sex:
male
Dose descriptor:
LD50
Effect level:
> 4 000 mg/kg bw
Based on:
act. ingr.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The LD50 of the substance is > 4000 mg/kg bw
Executive summary:

Five male rats received a single dose of 4000 mg/kg bw. The LD50 of the substance is > 4000 mg/kg bw, when corrected for purity of the tested substance