Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

Biodegradation properties of (Z)-N-octadec-9-enylhexadecan-1-amide (CAS No. 16260-09-6) has been investigated in two screening tests, an OECD 308 and an OECD 307. The screening study OECD 301D leads to a maximum of 27% biodegradation after 28 d.

In the OECD 308, the decline of the test substance in the overall system corresponded to estimated DT50 values of 19.6 days (Calwich Abbey Lake) and 25.2 days (Emperor Lake) with final mineralization range of 42% at 105 days (Calwich Abbey Lake) and 40.6% at 105 days (Emperor Lake).

In OECD 307, the substance degraded slowly in four different soils incubated under aerobic conditions with estimatedDT50 values, for primary degradation, between 226 and 418 days with final mineralization range from 8.5% at 120 days (Kennett soil) to 15.4% at 120 days (South Witham soil) .

Therefore, the substance is considered as not readily biodegradable.