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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

EC50 (72 h) of 1.7 mg/L and a NOEC of 0.38 mg/L, Pseudokirchneriella subcapitata, OECD 201

Key value for chemical safety assessment

EC50 for freshwater algae:
1.7 mg/L
EC10 or NOEC for freshwater algae:
0.38 mg/L

Additional information

One algae study for Betaines, C12-14 (even numbered)-alkyldimethyl, EC No. 931-700-2 is available. The study is conducted according to OECD 201 and revealed an EC50 of 1.7 mg/L (measured concentration of active ingredient)

for the tested substance and a NOEC of 0.38 mg/L (Hutchinson, 2010).