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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

The calculated freshwater fish (Pimephales promelas) 96-hour LL50 for 1,3-butadiene is 34.55 mg/L.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
34.55 mg/L

Additional information

Three QSAR models have been used to give an indication of the toxicity of 1,3-butadiene to fish.

Calculated 96 hour LC50 value is 45 mg/L from the equation recommended in the TGD (Verhaar et al, 1995)

QSAR 96 hour LC50 value is from ECOSAR is 41.5 mg/L.

QSAR 96 -hour LL50 Value via the TLM model is 34.55 mg/L.