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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation: readily biodegradable (68% after 28 days)

Additional information


A reliable key study was available on microbial degradation of Phytosphingosine. The study was performed for 28 days according to OECD 301C, Ready Biodegradability-MITI (I) (adopted 1992) and in compliance with GLP. The percentage biodegradations of the test substance, Phytosphingosine, observed by BOD measurement were calculated in the range of 66.0 - 69.1 % and the average percentage biodegradation was 68.0 % after 28 days. Results indicate that the test substance is ready biodegradable in aqueous condition (>60% according to the guideline). The percentage biodegradation based on the residual amount of test substance by HPLC analysis was calculated to be 97.0 %. The study fulfilled the validity criteria of the guideline and was considered reliable and adequate for the environmental hazard assessment.