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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Link to relevant study record(s)

Description of key information

Cited from SIAR for SIAM 18 (Paris, France, April 20–23, 2004):
"The growth inhibition of 3-aminomethyl-3,5,5-trimethylcyclohexylamine on the freshwater alga Scenedesmus subspicatus was tested by Hüls AG (1993b) according to a test procedure similar to OECD Guideline 201. The algae were exposed to 7 concentrations between 0.75 and 50 mg/l and
one control. Based on growth rate an ErC50 of > 50 mg/l and a 72h-ErC10 of 11 mg/l (NOEC 1.5 mg/l) were determined (nominal concentrations). Based on biomass development an EbC50 of 37 mg/l and a 72h-EbC10 of 3 mg/l were determined."

Key value for chemical safety assessment

EC50 for freshwater algae:
50 mg/L
EC10 or NOEC for freshwater algae:
11.2 mg/L

Additional information

Desmodesmus subspicatus 72h-ECr50 > 50 mg/L

Desmodesmus subspicatus 72h-ECr10 = 11.2 mg/L