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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Skin irritation / corrosion

Currently viewing:

Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Authoritative data base
Title:
Danish QSAR study for CAS No.:101-50-8
Author:
Danish (Q)SAR Database
Year:
2016
Bibliographic source:
Database developed by National Food Institute, Technical University of Denmark, with support from the Danish Environmental Protection Agency, the Nordic Council of Ministers and the European Chemicals Agency.

Materials and methods

Principles of method if other than guideline:
The data predicted using the Danish (Q)SAR Database
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-aminoazobenzene-3,4'-disulphonic acid
EC Number:
202-947-7
EC Name:
4-aminoazobenzene-3,4'-disulphonic acid
Cas Number:
101-50-8
Molecular formula:
C12H11N3O6S2
IUPAC Name:
4-aminoazobenzene-3,4'-disulphonic acid
Details on test material:
- Name of test material: 4-aminoazobenzene-3, 4’-disulphonic acid- Molecular formula: C12H11N3O6S2- Molecular weight: 357.36 g/mol- Substance type: Organic-SMILES: c1(cc(c(N)cc1)S(O)(=O)=O)\N=N\c1ccc(S(O)(=O)=O)cc1

Test animals

Species:
rabbit
Strain:
not specified

Test system

Type of coverage:
not specified
Preparation of test site:
not specified
Vehicle:
not specified
Controls:
not specified

Results and discussion

In vivo

Results
Irritation parameter:
other: estimated
Basis:
mean
Remarks on result:
other: non irritating

Any other information on results incl. tables

 

Exp

Battery

CASE Ultra

Leadscope

SciQSAR

Severe Skin Irritation in Rabbit

 

NEG_IN

INC_OUT

NEG_IN

NEG_IN

Allergic Contact Dermatitis in Guinea Pig and Human

NA

POS_IN

POS_IN

POS_OUT

POS_IN

Respiratory Sensitisation in Humans

 

POS_IN

POS_IN

POS_IN

POS_IN

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated informationCriteria used for interpretation of results: EU
Conclusions:
Based on the QSAR prediction done using the Danish (Q)SAR Database, the skin irritation was estimated to be not irritating on rabbits for 4-aminoazobenzene-3,4'-disulphonic acid.
Executive summary:

Based on the QSAR prediction done using the Danish (Q)SAR Database, the skin irritation was estimated to be not irritating on rabbits for 4-aminoazobenzene-3,4'-disulphonic acid. Thus it can be concluded that the substance 4-aminoazobenzene-3,4'-disulphonic acid has negative skin irritation effects and it can be classified as not irritating to skin irritation.