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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
1.8 mg/L

Additional information

The ready biodegradability was assessed in a study according to the OECD guideline 301 D “Ready biodegradability - Closed Bottle Test” (Gancet 2009). In the toxicity control the non-adapted activated sewage water treatment plant micro-organisms were exposed to 1.8 mg/L propoxylated N-tallow alkyltrimethylenediamines. There were no signs of inhibition. It is in agreement with ECHA (2008) Guidance, Chapter R.7b to use this type of information for the assessment of toxicity to micro-organisms. Chapter R.10.4.2 allows the derivation of the PNECstp on the basis of NOEC in biodegradation tests using applying an AF of 10 as no dose response curve is investigated in biodegradation studies and thus no corresponding LOEC exist.