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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data is from WHO Technical Report

Data source

Reference
Reference Type:
publication
Title:
SUMMARY OF TOXICOLOGICAL DATA OF CERTAIN FOOD ADDITIVES – RED 2G
Author:
Food and Agriculture Organization of the United Nations World Health Organization. The data contained in this document were examined by the Joint FAO/WHO Expert Committee on Food Additives, Geneva, 18-27 April 1977
Year:
1977
Bibliographic source:
Twenty-first Report of the Joint FAO/WHO Expert Committee on Food Additives, Geneva, 1977, WHO Technical Report Series No. 617

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: as below
Principles of method if other than guideline:
To estimate the acute oral toxicity of Acid Red 1
GLP compliance:
not specified
Test type:
other: No data

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium 5-acetylamino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonate
EC Number:
223-098-9
EC Name:
Disodium 5-acetylamino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonate
Cas Number:
3734-67-6
Molecular formula:
C18H15N3O8S2.2Na
IUPAC Name:
disodium 5-acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonate
Constituent 2
Reference substance name:
RED 2G [Acid Red 1]
IUPAC Name:
RED 2G [Acid Red 1]
Details on test material:
- Name of test material (as cited in study report):RED 2G [Acid Red 1]- Molecular formula (if other than submission substance):C18H13N308S2Na2- Molecular weight (if other than submission substance):509.43- Substance type:Organic- Physical state:Solid

Test animals

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

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
not specified
Details on oral exposure:
no data
Doses:
no data
No. of animals per sex per dose:
no data
Control animals:
not specified

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Gross pathology:
Histological studies in rats showed extensive renal necrosis.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated informationCriteria used for interpretation of results: EU
Conclusions:
In an acute oral study in rats, the acute oral LD50 for RED 2G was found to be greater than 5000mg/kg
Executive summary:

Acute Oral studies were carried out on rats, guinea pigs and rabbits. Rats were administered RED 2G orally through gavage and toxic signs were observed. Histological studies in rats showed extensive renal necrosis.

The acute oral LD50 for RED 2G was found to be greater than 5000mg/kg