Registration Dossier
Registration Dossier
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EC number: 415-450-7 | CAS number: 126213-50-1
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 5.3.-11.3.2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study is performed in accordance to Guideline study.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- - Name of test material (as cited in study report): 3,4-Ethylenedioxythiophene
- Comercial name. EDOT
- Substance type: pure organic substance
- Physical state: liquid near colourless to pale yellow
- Analytical purity: > 99%
- Lot/batch No.: 091201
- Expiration date of the lot/batch: 21.1.2011
- Storage condition of test material: Keep in dark at room temperature. Stored in amber glass bottles under the argon atmosphere. Minimalize time for handling with substance without protective argon atmosphere as possible. Maximal time without protective atmosphere is 30 min.
Study design
- Analytical method:
- high-performance liquid chromatography
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- 1.976
- Temp.:
- 25 °C
- pH:
- 7.1
- Remarks on result:
- other: +/- 0.336
Applicant's summary and conclusion
- Conclusions:
- In accordance with the estimated values of log Pow, it was decided to use the HPLC method for partition coefficient determination.
The partition coefficient of the test substance 3,4-Ethylenedioxythiophene is: log P = 1.979 +/- 0.336 (25 °C, pH = 7.1) - Executive summary:
- The procedure was performed according to
Method A.8, Partition coefficient, Council Regulation (EC) No 440/2008,
Published in O.J. L 142, 2008.
In accordance with the estimated values of log POW (1.56 1.02), it was decided to use the HPLC method for partition coefficient determination.
The partition coefficient of the test substance 3,4-Ethylenedioxythiophene is : log P = 1.976 +/- 0.336 (25 °C, pH = 7.1)
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