Registration Dossier
Registration Dossier
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EC number: 221-374-3 | CAS number: 3081-01-4
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with column 2 of REACH Annex VII, the study does not need to be conducted as the substance is hydrolytically unstable at pH 7 (half-life 7 hours).
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 5.17
- at the temperature of:
- 20 °C
Additional information
A calculated value of 5.17 for 7PPD was received using KOWWIN v1.68 included in EPISuite v 4.11, ©2000 - 2012.
4-Hydroxydiphenylamine CAS 122-37-2 was identified as the primary hydrolysis product. The hydrolysis product 4-Hydroxydiphenylamine is characterized by a logKow of 2.46 being calculated with KOWWIN v1.68 included in EPISuite v 4.11, ©2000 - 2012 (Currenta, 2016). The oxides form of 4- HDPA ("N-Oxide") yielded a logKow of -1.7 to 0.9 (depending on the structure of tautomers).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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