Registration Dossier
Registration Dossier
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EC number: 201-841-8 | CAS number: 88-58-4
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Remarks:
- n-Octanol/Water
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient - HPLC Method)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Specific details on test material used for the study:
- Identification: di-tert-butyl hydroquinone
CAS Number: 88-58-4
Appearance/Physical state: White solid
Batch: TS140610
Purity: 99.6%
Expiry date: 03 November 2018
Storage conditions: Room temperature, in the dark - Analytical method:
- high-performance liquid chromatography
- Type:
- log Pow
- Partition coefficient:
- 2.44
- Temp.:
- 30 °C
- pH:
- 6.7
- Remarks on result:
- other: The partition coefficient of the test item has been determined to be 274, log10 Pow 2.44.
- Details on results:
- Preliminary Estimate
The log10 Pow was calculated to be: 4.85
Definitive Test
Mean log10 Pow: 2.44 Partition coefficient: 274 - Conclusions:
- The partition coefficient of the test item has been determined to be 274, log10 Pow 2.44.
- Executive summary:
274, log10 Pow 2.44, using the HPLC method, designed to be compatible with Method A.8 Partition Coefficient of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 117 of the OECD Guidelines for Testing of Chemicals, 13 April 2004.
Reference
Description of key information
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 2.44
- at the temperature of:
- 30 °C
Additional information
274, log10 Pow 2.44, using the HPLC method, designed to be compatible with Method A.8 Partition Coefficient of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 117 of the OECD Guidelines for Testing of Chemicals, 13 April 2004.
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