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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data is from REAXYS

Data source

Reference
Reference Type:
review article or handbook
Title:
Reaxys ID 1821283
Year:
2011
Bibliographic source:
Reaxys by Elsevier Properties SA;Greim, H.; Ahlers, J; Bias, R.; Broecker, B.; Hollander, H.; et al. ; Chemosphere; vol. 28; nb. 12; (1994); p. 2203 2236,

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Principles of method if other than guideline:
Acute oral toxicity of 2-Amino-8-hydroxynaphthalene-6-sulfonic acid in rats.
GLP compliance:
not specified
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Reference substance name:
6-amino-4-hydroxynaphthalene-2-sulphonic acid
EC Number:
202-000-8
EC Name:
6-amino-4-hydroxynaphthalene-2-sulphonic acid
Cas Number:
90-51-7
IUPAC Name:
6-amino-4-hydroxynaphthalene-2-sulfonic acid
Constituent 2
Reference substance name:
2-Amino-8-hydroxynaphthalene-6-sulfonic acid
IUPAC Name:
2-Amino-8-hydroxynaphthalene-6-sulfonic acid
Details on test material:
Name:

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified

Administration / exposure

Route of administration:
other: peroral
Vehicle:
unchanged (no vehicle)
Details on oral exposure:
No data available
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
No data available
Control animals:
not specified
Details on study design:
No data available
Statistics:
No data available

Results and discussion

Preliminary study:
No data available
Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Remarks on result:
other: No mortality observed
Mortality:
No data available
Clinical signs:
other: No data available
Gross pathology:
No data available
Other findings:
No data available

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
LD50 was considered to be > 5000 mg/kg bw when rats were treated with 2-Amino-8-hydroxynaphthalene-6-sulfonic acid orally.
Executive summary:

In a acute oral toxicity study, rats were treated with 2-Amino-8-hydroxynaphthalene-6-sulfonic acid in the concentration of 5000 mg/kg bw orally. No mortality was observed in treated rats at 5000 mg/kg bw. Therefore, LD50 was considered to be > 5000 mg/kg bw when rats were treated with 2-Amino-8-hydroxynaphthalene-6-sulfonic acid orally.