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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

The 21 day NOEC of  C6 Pyrazole Hemisulfate to Daphnia magna was 0.29 mg/L expressed as test material, based on mortality and growth (carapace measurements) and 0.12 mg/L expressed as test material, based on reproduction.  The results were based on time-weighted mean measured test concentrations. 

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
0.12 mg/L

Additional information

The 21-day chronic toxicity ofC6 Pyrazole Hemisulfateto Daphnia magna was determined under semi-static conditions according to the OECD Guideline 211 (Daphnia magna Reproduction Test) guideline and following the GLP. 

The 21 day NOEC of C6 Pyrazole Hemisulfateto on Daphnia magna reproduction was 0.29 mg/L expressed as test material, based on mortality and growth (carapace measurements) and 0.12 mg/L expressed as test material, based on reproduction. The results were based on time-weighted mean measured test concentrations.