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Short-term toxicity to aquatic invertebrates

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Description of key information

Acutely very toxic for aquatic invertebrates.

Key value for chemical safety assessment

Additional information

No data on the short-term toxicity to aquatic invertebrates are available for the Reaction products of cyclododeca-1,5,9-triene and dinitrogen monoxide, distillation overheads (EC 948 -260 -2). Thus, the assessment is based on the two components EC 701 -295 -5 (ca. 63%) and CAS 4904 -61 -4 (ca. 13%).

In a semi-static test using main component EC 701 -295 -5 conducted according to OECD TG 202 50 % of Daphnia magna were immobile at a substance concentration of 2.35 mg/l after 48 hours (BASF SE, 2018) based on the arithmetic mean initially measured concentrations of the test item. In a static test with no specified guideline, the toxicity to the marine invertebrate Americamysis bahia was investigated. Based on the nominal test concentration, an EC50 after 96h of 0.47 mg/L was determined.