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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

NOEC (14 d) ≥ 29.5 mg/L for activated sludge microorganisms (OECD 301B)

Key value for chemical safety assessment

Additional information

The toxicity of fatty acids, vegetable-oil, esters with dipropylene glycol (CAS 95009-41-9) to microorganisms was investigated in a biodegradation study according to OECD 301B under GLP conditions (Muckle, 2014). The study was performed with domestic activated sludge. No inhibition of biodegradation was observed after 14 d. The test concentration from a biodegradation study which indicated that the test substance is readily biodegradable can be used to derive a NOEC for this endpoint as stated in the ECHA Guidance R.7b (ECHA, 2012). Therefore, the test item concentration of 29.5 mg/L can be used as NOEC value for the toxicity to activated sludge microorganisms. Thus, a NOEC (14 d) of ≥ 29.5 mg/L resulted.