Amides, C18-unsatd., N-[2-(1-piperazinyl)ethyl]

Biodegradation in soil

Link to relevant study record(s)

Reference

Endpoint:

biodegradation in soil: simulation testing

Data waiving:

other justification

Justification for data waiving:

other:

Transformation products:

no

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.