Registration Dossier
Registration Dossier
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EC number: 202-668-0 | CAS number: 98-43-1
Dissociation constant
Administrative data
- Endpoint:
- dissociation constant
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other:
- Principles of method if other than guideline:
- Conductometric method.; Measurement of capacity of a compound to dissociate into respective ions.
- GLP compliance:
- no
Test material
- Reference substance name:
- 4-sulphoanthranilic acid
- EC Number:
- 202-668-0
- EC Name:
- 4-sulphoanthranilic acid
- Cas Number:
- 98-43-1
- Molecular formula:
- C7H7NO5S
- IUPAC Name:
- 2-amino-4-sulfobenzoic acid
- Details on test material:
- - Name of test material (as cited in study report): 4-sulphoanthranilic acid
- Substance type: Organic
- Physical state: Solid
Constituent 1
Results and discussion
- Dissociating properties:
- yes
Dissociation constantopen allclose all
- No.:
- #1
- pKa:
- 0.056
- Temp.:
- 28 °C
- No.:
- #2
- pKa:
- 0.055
- Temp.:
- 28 °C
Applicant's summary and conclusion
- Conclusions:
- Dissociation constant pka: 0.056
- Executive summary:
The pKa value for 4-sulphoanthranilic acid in aqueous solution at 28 degrees C is 0.056.
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