Registration Dossier
Registration Dossier
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EC number: 212-344-0 | CAS number: 793-24-8
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
6PPD:
The QSAR determination of the logarithmic octanol-water partition coefficient for N-(1,3-dimethylbutyl)-N'-phenylbenzene-1,4-diamine using the model KOWWIN included in the Estimation Program Interface (EPI) Suite v4.11 revealed a value of 4.68 of the substance. The predicted value can be considered reliable yielding a useful result for further assessment.
4-Hydroxydiphenylamine:
The QSAR determination of the logarithmic octanol-water partition coefficient for 4-Hydroxydiphenylamine using the model KOWWIN included in the Estimation Program Interface (EPI) Suite v4.11 revealed a value of 2.46 of the substance. The predicted value can be considered reliable yielding a useful result for further assessment.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 4.68
- at the temperature of:
- 20 °C
Additional information
A calculated value of 4.68 for 6PPD was received using EPIWIN.
4-Hydroxydiphenylamine CAS 122-37-2 and benzoquinoneimine-n-phenyl were identified as the hydrolysis products. Benzoquinoneimine-n-phenyl is the oxidized form of 4-hydroxydiphenylamine. (Monsanto, 1986). The hydrolysis product 4-Hydroxydiphenylamine is characterized by a logKow of 2.46 being calculated with KOWWIN v. 1.68 (Currenta, 2014)
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