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PBT assessment

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PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB

In an sediment water biodegradation simulation study according to OECD TG 309 using the C18-unsaturated, diamide with [14C]1-piperazineethanamine as realistic worst-case representative  for the registered substance, N-[2-(piperazin-1-yl) ethyl]C18-insaturated-alkylamide (AA-AEP) a mean half-life of 4.5 days at 12 °C was observed and Piperazin-1-yl-acetic acid (CAS no 37478-58-3) was identified as persistent metabolite.

The available biodegradability data show that the registered substance, AA-AEP is not persistent but only its degradation product Piperazin-1-yl-acetic acid is considered to be persistent

The registered substance does therefore not fulfil the criteria for Persistence and Toxicity, and cannot be considered PBT or vPvB.