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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

With high probability acutely not harmful to aquatic invertebrates.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
500 mg/L

Marine water invertebrates

Marine water invertebrates
Effect concentration:
359 mg/L

Additional information

To determine the toxicity of Methylbutinol to aquatic invertebrates, a non-GLP study following to EU method C.2 using Daphnia magna was performed. The calculated EC50 (48h) value in this study was >500 mg/L, related to the nominal concentrations (BASF SE 1988). Acute tests on marine organisms were performed using Chaetogammarus marinus in a semi-static approach. The non-guideline test revealed a LC50 (96h) of 359 mg/L, related to the nominal concentraion.