Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 204-200-0 | CAS number: 117-61-3
Additional physico-chemical information
Administrative data
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: data taken from SciFinder
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- SciFinder ID: 68
- Year:
- 2 011
- Bibliographic source:
- SciFInder, American Chemical Society (ACS); Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (© 1994-2012 ACD/Labs)
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other:
Test material
- 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
Constituent 1
Results and discussion
- Results:
- pKa -1.85±0.50 Most Acidic Temp: 25 °C
pKa 3.78±0.10 Most Basic Temp: 25 °C
Applicant's summary and conclusion
- Conclusions:
- pKa -1.85±0.50 Most Acidic Temp: 25 °C
pKa 3.78±0.10 Most Basic Temp: 25 °C
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
