Registration Dossier
Registration Dossier
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EC number: 276-769-3 | CAS number: 72705-22-7
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2007
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: well performed OECD study but without GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- not specified
- GLP compliance:
- no
- Type of method:
- flask method
Test material
- Reference substance name:
- Ammonium 4-acetoacetylamino-5-methoxy-2-methylbenzenesulphonate
- EC Number:
- 276-769-3
- EC Name:
- Ammonium 4-acetoacetylamino-5-methoxy-2-methylbenzenesulphonate
- Cas Number:
- 72705-22-7
- Molecular formula:
- C12H15NO6S.H3N
- IUPAC Name:
- ammonium 4-acetoacetylamino-5-methoxy-2-methylbenzenesulphonate
Constituent 1
Results and discussion
Water solubility
- Water solubility:
- > 200 - < 400 g/L
- Temp.:
- 20 °C
- pH:
- ca. 7
Applicant's summary and conclusion
- Conclusions:
- Interpretation of results (migrated information): very soluble (> 10000 mg/L)
The water solubility of the substance is between 200 and 400 g/l at 20°C. - Executive summary:
The water solubility of the test substance N-acetoacetyl cresidine sulphonic acid, ammonium salt was determined according to the OECD Guideline for the Testing of Chemicals 105.
The flask method was chosen to determine the water solubility of the test substance, because the preliminary test indicated a water solubility of > 200 g/l. It was not possible to produce a saturated solution of the test substance in water. After the addition of a small excess of test substance a prompt precipitation as a pasty mass (without separation of a liquid phase) took place. This precipitation occurred at a concentration of approx. 400 g/l.
The water solubility of the substance was therefore defined to be between 200 and 400 g/l at 20°C.
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