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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

3 h NOEC = 100 mg/L; 3 h EC50 >100, <1000 mg/L (OECD guideline 209, non-GLP, RL2) ; read across from Stearic acid 3-(dimethylaminopropyl)amide

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
100 mg/L

Additional information

No experimental data are available for C16-18 DMAPA amidoamine. However, an activated sludge respiration inhibition test with the read-across substance Stearic acid 3-(dimethylaminopropyl)amide is available. For justification for read-across see endpoint summary "Aquatic toxicity".

 

In an OECD 209 Sludge respiration inhibition test no effect was observed at the limit test concentration of 100 mg/L. Based on the range finding test it can be estimated that the EC50 (3h) is between 100 and 1000 mg/L. The 3 h NOEC was 100 mg/L.