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Ecotoxicological information

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The LC50(96 h) on the fish Danio rerio was determined to be 320 mg/L in a study according to OECD guideline 203. A NOEC of 180 mg/L was reported.

The EC50 (48 h) on Daphnia magna was determined to be 683 mg/L in a study according to OECD guideline 202. The 48 h EC50 (immobilisation) reported for ethyl-(S)-lactate to Daphnia magna was 683 mg/L. The 48 h NOEC (immobilisation) reported for ethyl-(S)-lactate to Dapnia magna was 320 mg/L. The NOEC (condition) reported was 560 mg/L (all surviving animals were in good condition).

The ErC50(72 h) for algae (Desmodesmus subspicatus) was determined to be 3500 mg/L in a study according to OECD guideline 201. The EbC50 reported was 2300 mg/L and the NOEC reported was 320 mg/L.

No adverse effects have been observed in the acute aquatic toxicity studies with fish, daphnids and algae at the highest recommended test concentrations of 100 mg/L. Therefore, ethyl-(S)-lactate is not classified for environmental hazards.