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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 96 hour LC50 is 5.3 mg/L for Oncorhynchus mykiss. 

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
5.3 mg/L

Additional information

The lowest 96 hour LC50 from a flow through study with analytical monitoring of the exposure concentrations was reported by DeGraeve et al (1982). The study design was similar to the standard OECD 203 guideline and used Oncorhynchus mykiss, a standard test species. This value was also the most conservative acute endpoint for freshwater fish identified in the EU RAR for benzene (2008).