Registration Dossier
Registration Dossier
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EC number: 220-250-6 | CAS number: 2687-91-4
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 12.5 mg/L
Additional information
One study concerning chronic toxicity to invertebrates is available for the analogous test substance 1-methyl-2-pyrrolidone (CAS 872 -50 -4), performed by BASF (2001) according to OECD guideline 211. This read across is suitable because the substances have a comparable molecular structure and their physico-chemical properties lie within a similar range. In the semi-static test Daphnia magna was used as test organism. After 21 days of exposure, a NOEC of 12.5 mg/L was found (nominal concentration, analytically verified).
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