Registration Dossier
Registration Dossier
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EC number: 202-667-5 | CAS number: 98-42-0
Dissociation constant
Administrative data
- Endpoint:
- dissociation constant
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24.01.2013 - 05.02.2013
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other:
- Principles of method if other than guideline:
- Measurement of capacity of a compound to dissociate into respective ions.
- GLP compliance:
- no
Test material
- Reference substance name:
- 3-amino-4-methoxybenzenesulphonic acid
- EC Number:
- 202-667-5
- EC Name:
- 3-amino-4-methoxybenzenesulphonic acid
- Cas Number:
- 98-42-0
- Molecular formula:
- C7H9NO4S
- IUPAC Name:
- 3-amino-4-methoxybenzenesulphonic acid
- Test material form:
- other: amorphous
- Details on test material:
- - Name of test material: 3-amino-4-methoxybenzenesulphonic acid
- Molecular formula: C7H9NO4S
- Molecular weight: 203.22
- Substance type: organic
- Physical state: Soild
Constituent 1
Results and discussion
- Dissociating properties:
- yes
Dissociation constantopen allclose all
- No.:
- #1
- pKa:
- 0.001
- Temp.:
- 24 °C
- No.:
- #2
- pKa:
- 0.001
- Temp.:
- 24 °C
- No.:
- #3
- pKa:
- 0.001
- Temp.:
- 24 °C
Applicant's summary and conclusion
- Conclusions:
- The average experimental pKa value for 3-amino-4-methoxybenzenesulphonic acid was found to be 0.0012566 at 24 deg C indicating that it has dissociation properties.
- Executive summary:
The average experimental pKa value for 3-amino-4-methoxybenzenesulphonic acid was found to be 0.0012566 at 24 deg C indicating that it has dissociation properties.
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