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Reaction products of diazotized 4-aminobenzenesulfonic acid coupled with aniline, subsequently coupled with diazotized 2-aminobenzoic coupled with 7-amino-4-hydroxynaphthalene-2-sulfonic then reacted with (E)-6,6'(ethene-1,2-diyl)bis(3-nitrobenzenesulfonic acid), chelated with copper, sodium salt
EC number: 944-111-0 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- October 17, 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
- Analytical method:
- photometric method
- Type:
- Pow
- Partition coefficient:
- ca. 0.004
- Temp.:
- 20 °C
- pH:
- ca. 6.86
- Type:
- log Pow
- Partition coefficient:
- ca. -2.375
- Temp.:
- 20 °C
- pH:
- ca. 6.86
- Conclusions:
- Log Pow = -2.3749 at 20 °C and pH = 6.86
- Executive summary:
Method
Partition coefficient was determined by means of shake flask method as per recommendations of OECD 107. Partition coefficient (P) is defined as the ratio of the equilibrium concentrations of a dissolved substance in a two-phase system consisting in two largely immiscible solvents.
Result
Study conducted at 20 °C and at pH of 6.86.
Log Pow = -2.3749.
Reference
At 96 hours values reached equilibrium, and so this value was considered for final calculations making duplicate determinations of every ratio o/w. Concentration of mother solution: W1 = 0.0406 g / 100ml = 0.4060 g/l
Description of key information
-2.3749 (Pow: 0.0044) at 20 °C and pH 6.86
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -2.375
- at the temperature of:
- 20 °C
Additional information
Shake Flask method - OECD guideline 107
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