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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

biodegradation in soil: simulation testing
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other justification
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Transformation products:

Description of key information

Key value for chemical safety assessment

Half-life in soil:
3 000 d
at the temperature of:
12 °C

Additional information

For N-[2-(piperazin-1-yl)ethyl]C18-insaturated-alkylamide 36% biodegradation was observed in a closed bottle test (Ginkel 1990). This substance should therefore not be classified as readily biodegradable. Partial biodegradation of N-[2 -(piperazin-1 -yl)ethyl]C18 -insaturated-alkylamide was anticipated because 1-Piperazineethanamine  (CAS Num: 140 -31 -8) was observed and is most likely not easily further degraded (see attached document). This means that the parent; N-[2 -(piperazin-1 -yl)ethyl]C18 -insaturated-alkylamide is most likely completely removed within 28 days in the ready test.

Based on the uses claimed for N-[2-(piperazin-1 -yl)ethyl]C18-insaturated-alkylamide soil exposure is likely. It is however very unlikely that further degradation of 1 -Piperazineethanamine will occur in soil. Further testing in soil is therefore not expected to deliver more information. For soil therefore a worst-case half life value of 3000 days (Kd = 3004 L/kg) is used. In accordance with column 2 of REACH annex IX, further degradation testing does not need to be conducted as the chemical safety assessment does not indicate a need for further investigation.