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EC number: 268-516-0 | CAS number: 68110-27-0
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:
- 23.05.- 24.05.2017
- 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)
- Version / remarks:
- Adopted 27 July 1995
- Deviations:
- yes
- Remarks:
- See Any other information
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - Shake Flask Method)
- Version / remarks:
- Council regulation (EC) No 440/2008
- Deviations:
- yes
- Remarks:
- See Any other information
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
- Analytical method:
- high-performance liquid chromatography
- Key result
- Type:
- log Pow
- Partition coefficient:
- -2.84
- Temp.:
- 23 °C
- pH:
- 2.88
- Conclusions:
- Partition coefficient (log P) of the test substance, Reactive Yellow 85, determined by shake-flask method is:log Pow = -2.84 ± 0.08 (pH 2.88, 23°C)
- Executive summary:
The partition coefficient of the test substance Reactive Yellow 85 was determined.
For determination of partition coefficient was used the shake-flask method.
The test was performed according to the shake-flask method (OECD Test Guideline 107, Partition Coefficient (n-octanol/water): Shake Flask Method, Adopted 27 July 1995).
Partition coefficient (log P) of the test substance Reactive Yellow 85 determined by shake-flask method is:
log Pow = -2.84 ± 0.08 (pH 2.88, 23°C)
Reference
Deviation: A stock solution of the test substance should be prepared in n-octanol pre-saturated with water. Because of a low solubility of the test substance in this medium, the stock solution was prepared in water pre-saturated with n-octanol.
This deviation has no effect on the determination of log Pow of the test substance. There were no other deviations from study plan or guidelines during the study.
Description of key information
The test was performed according to the shake-flask method (OECD Test Guideline 107, Partition Coefficient (n-octanol/water): Shake Flask Method, Adopted 27 July 1995).
Partition coefficient (log P) of the test substance Reactive Yellow 85 determined by shake-flask method is:
log Pow = -2.84 ± 0.08 (pH 2.88, 23°C)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -2.84
- at the temperature of:
- 23 °C
Additional information
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