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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.: 117-61-3
Author:
Danish EPA Model
Year:
2012
Bibliographic source:
QSAR predictions by Danish Environmental Protection Agency (EPA)model powered by OASIS database; DK-EPA

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: modelling database
Principles of method if other than guideline:
Skin irritation (Severe vs mild).Multicase model.
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Benzidine-2,2’-disulphonic acid
IUPAC Name:
Benzidine-2,2’-disulphonic acid
Constituent 2
Chemical structure
Reference substance name:
Benzidine-2,2'-disulphonic acid
EC Number:
204-200-0
EC Name:
Benzidine-2,2'-disulphonic acid
Cas Number:
117-61-3
Molecular formula:
C12H12N2O6S2
IUPAC Name:
4,4'-diamino-[1,1'-biphenyl]-2,2'-disulfonic acid
Details on test material:
- Name of test material: Benzidine-2,2’-disulphonic acid
- Molecular formula: C12H12N2O6S2
- Molecular weight: 344.369
- Substance type: organic
- Physical state: solid

Test animals

Species:
other: no data
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:
overall irritation score
Basis:
mean
Reversibility:
no data
Remarks on result:
other: Severe skin irritation: Negative

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Benzidine-2,2’-disulphonic acid was estimated to be non irritating to skin as per the prediction of the Danish EPA model.
Executive summary:

Benzidine-2,2’-disulphonic acid was estimated to be non irritating to skin as per the prediction of the Danish EPA model.