Registration Dossier
Registration Dossier
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EC number: 940-877-5 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
Studies on the terrestrial toxicity of Reaction mass of
2-(3,4-dimethyl-1H-pyrazol-1-yl)succinic acid and
2-(4,5-dimethyl-1H-pyrazol-1-yl)succinic acid are available for the
earthworm Eisenia fetida and for the arthropods Folsomia candida and
Apis mellifera. Moreover, a study investigating effects of the substance
on the carbon transformation by soil microorganisms is available.
In the long-term study with Eisenia fetida, an effect on reproduction
was observed at the highest test concentration 1000 mg/kg soil dw. The
NOEC was determined to be 500 mg/kg soil dw. The toxicity to Folsomia
candida was also tested in a long-term study with substance
concentrations up to 1000 mg test substance/kg soil. Effects of the
substance on F. candida were not observed. In the study with Apis
mellifera no effects were observed after oral or contact exposure at the
tested doses (118.4 μg a.i./bee and 100 µg a.i./bee, respectively). The
carbon transformation of soil microorganisms was not inhibited by the
substance up to a concentration of 37.65 mg/kg soil dw (EC10 (28 d) >
37.65 mg/kg soil dw).
Based on these results low toxicity of the substance to terrestrial organisms is expected.
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