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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

WoE based on two pieces of information:
1. The tested analog substance 2-Propyn-1-ol, compd. with methyloxirane (38172-91-7), which structurally differs from the registered substance 2-Propyn-1-ol, compd. with oxirane by a methy side group in the oxirane chain, is almost not toxic to daphnia.
2. Based on an well established QSAR programm the most toxic component (mono-ethoxylate) of the registered substance 2-Propyn-1-ol, compd. with oxirane is not toxic to daphnia.
Conclusion: taken together there is strong evidence that the registered substance is almost not toxic for daphnia.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
101 mg/L

Additional information