Registration Dossier
Registration Dossier
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EC number: 264-719-3 | CAS number: 64173-96-2
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - HPLC Method)
- GLP compliance:
- no
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Sodium 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonate
- EC Number:
- 264-719-3
- EC Name:
- Sodium 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonate
- Cas Number:
- 64173-96-2
- Molecular formula:
- C10H6N2O4S.Na
- IUPAC Name:
- sodium 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulphonate
- Test material form:
- solid
Constituent 1
Study design
- Analytical method:
- high-performance liquid chromatography
Results and discussion
Partition coefficient
- Key result
- Type:
- log Pow
- Partition coefficient:
- ca. -3
- Temp.:
- 20 °C
- pH:
- ca. 2.9
- Details on results:
- Due to instability of the test item, the LogPow was calculated using the individual sturation solubilities of the test item in water (cs = 190 g/L at 20^C, pH 2.9) and n-octanol (209 mg/L).
The solubilities were determined according to the flask method.
The calculated log Pow using KOWWIN is -4.
Applicant's summary and conclusion
- Conclusions:
- The log Pow is approx. -3.
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