Registration Dossier
Registration Dossier
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EC number: 700-924-0 | CAS number: -
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- 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:
- 2 013
- Report date:
- 2013
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- disodium 4-hydroxy-3-[(E)-2-[4-({4-[(E)-2-(1-hydroxy-4-sulfonaphthalen-2-yl)diazen-1-yl]-3-methoxyphenyl}(phenyl)methyl)-2-methoxyphenyl]diazen-1-yl]naphthalene-1-sulfonate
- EC Number:
- 700-924-0
- Molecular formula:
- C41H30N4Na2O10S2
- IUPAC Name:
- disodium 4-hydroxy-3-[(E)-2-[4-({4-[(E)-2-(1-hydroxy-4-sulfonaphthalen-2-yl)diazen-1-yl]-3-methoxyphenyl}(phenyl)methyl)-2-methoxyphenyl]diazen-1-yl]naphthalene-1-sulfonate
Constituent 1
Results and discussion
Partition coefficientopen allclose all
- Type:
- Pow
- Partition coefficient:
- 0
- Temp.:
- 20 °C
- Type:
- log Pow
- Partition coefficient:
- -3.8
- Temp.:
- 20 °C
- Details on results:
- Based on the preliminary the solubility in noctanol was detenmined by means of the flask method, which is also used for the determination of the water solubility. The partition coefficient can be calculated from the solubilities in water (59.5 g/l) and n-octanol (8.82 mg/l) .
Any other information on results incl. tables
The partition coefficient can be calculated from the solubilities in water (59.5 g/l) and n-octanol (8.82 mg/l) .
Applicant's summary and conclusion
- Conclusions:
- The partition coefficient at 20°C of the main constituent of the test item Acid Red RN 2949 was calculated from the solubilities in water and n-octanol:main constituent: log Pow = -3.8
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