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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

inherently biodegradable under extended conditions

Key value for chemical safety assessment

Biodegradation in water:
inherently biodegradable

Additional information

The biodegradability of the mixed-Tocopherols (CAS: 1406-66-2) is evaluated on the basis of read across data to DL-alpha-Tocopherol (CAS: 10191-41-0) and/or of the precursor of alpha-Tocopheryl acetate (CAS: 7695-91-2).

There are two aerobic degradation tests for the group of tocopherols and tocopheryl acetates available: One tests was performed with DL-alpha-tocopherol (CAS: 10191-41-0) a stereo according to OECD 301 F protocols and GLP. The test reveals a result of 70 -80% with an extended exposure up to 67d (Givaudan Suisse SA,2011).


A degradation test is further available for DL-alpha-tocopheryl acetate (CAS: 7695-91-2). In an OECD 301C test run over 39days, the biodegradation recorded was 30-40% (BASF,1988b).