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EC number: 272-732-0 | CAS number: 68910-13-4
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24 August 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Valid method
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
- Principles of method if other than guideline:
- Determination of solubility in octanol and calculation of log Pow with water solubility reported in section 4.8
- Type of method:
- other: calculation
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(phenyl and o-tolyl) derivs.
- EC Number:
- 272-732-0
- EC Name:
- Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(phenyl and o-tolyl) derivs.
- Cas Number:
- 68910-13-4
- Molecular formula:
- C32H26O4N6Cl2 - C34H30O4N6Cl2
- IUPAC Name:
- Reaction mass of 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazendiyl)]bis[3-oxo-N-phenylbutyramide], 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[N-(2-methylphenyl)-3-oxobutyramide] and 2-[2-[3,3'-dichloro-4'-[2-[1-[[(2-methylphenyl)amino]carbonyl]-2-oxopropyl]diazenyl][1,1'-biphenyl]-4-yl]diazenyl]-3-oxo-N-phenylbutyramide
Constituent 1
Study design
- Analytical method:
- photometric method
Results and discussion
Partition coefficientopen allclose all
- Type:
- Pow
- Partition coefficient:
- 130.46
- Temp.:
- 23 °C
- pH:
- ca. 7
- Type:
- log Pow
- Partition coefficient:
- > 2.12
- Temp.:
- 23 °C
- pH:
- ca. 7
- Details on results:
- Pow and log Pow were calculated from equilibrium concentrations in octanol (see below) and in water (see section 4.8)
Any other information on results incl. tables
* below limit of detection (see section 4.8) ** mean of three measurements (individual values: 124, 137 and 129 µg/L).
The n-octanol/water partition coefficient can be approximated with the following equation: Pow= (Cn-octanol / Cwater) = 130.46 ± 6.609915 Log Pow > 2.12 |
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Applicant's summary and conclusion
- Conclusions:
- The test substance has a log Pow > 2.12 at 23°C.
- Executive summary:
- The log Pow of the test substance was calculated from the solubilities in water and in n-octanol. The log Pow at 23 °C was >2.12. Since the solubility in water is below the limit of detection, no distinct value for log Pow can be given.
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