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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Description of key information

Based on the measured log Kow of 2.77 a BCF of 31.2 is estimated using EPI Suite program.
The BCF of 4-hydroxydiphenylamine, the main hydrolysis product from N-isopropyl-N'-phenyl-p-phenylenediamine (IPPD) was determined by the Chemicals Inspection & Testing Institute of Japan (MITI, 1994) using a Bioconcentrations test that corresponds to OECD Guideline 305 C. The bioconcentration factor ranges from 3.3 - 49. For the second hydrolysis product p-quinoneimine-N-phenyl, the measured BCF is in the range of 1.2 – 23.

Key value for chemical safety assessment

BCF (aquatic species):
31.2 dimensionless

Additional information

Although no experimental BCF for the substance IPPD is available, the calculated result indicates that the substance does not meet the B criterion as it is far below the trigger value of 2000.