Registration Dossier
Registration Dossier
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EC number: 256-783-6 | CAS number: 50814-31-8 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 40215.
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Version / remarks:
- 1995
- GLP compliance:
- no
- Type of method:
- flask method
- Partition coefficient type:
- octanol-water
- Analytical method:
- photometric method
- Type:
- Pow
- Partition coefficient:
- 0.006
- Temp.:
- 20 °C
- pH:
- 6.7
- Type:
- log Pow
- Partition coefficient:
- -2.23
- Temp.:
- 20 °C
- pH:
- 6.7
- Conclusions:
- The substance was tested according to guideline OECD 107, logPow is -2.2300 at 20 °C and pH 6.70.
- Executive summary:
Method
Partition coefficient estimated using shake flask method according to OECD guideline 107.
Results
logPow is -2.2300 at 20 °C and pH 6.70.
Reference
| ratio o/w | water phase | n-octanol phase | Pow | logPow | average logPow |
| c (g/l) | c (g/l) | ||||
| 70/30 | 0.4147 | 0.0023 | 0.0055 |
-2.262451 |
-2.2625 |
70/30 |
0.4147 |
0.0023 |
0.0055 |
-2.262451 |
|
50/50 |
0.4147 |
0.0023 |
0.0055 |
-2.262451 |
-2.2625 |
50/50 |
0.4147 | 0.0023 | 0.0055 | -2.262451 | |
| 30/70 | 0.4142 | 0.0028 | 0.0068 | -2.164947 | -1.1649 |
| 30/70 | 0.4142 | 0.0028 | 0.0068 | -2.164947 | |
| pH of test solution | 6.70 | ||||
| average Pow | 0.0059 | average logPow | -2 -2300 |
||
std. dev. Pow |
0.0008 |
std. dev. logPow |
0.056 |
||
Description of key information
OECD 107, logPow = -2.2300 at 20 °C and pH 6.70.Key value for chemical safety assessment
- Log Kow (Log Pow):
- -2.23
- at the temperature of:
- 20 °C
Additional information
Shake flask method as described in OECD guideline 107.
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