Registration Dossier
Registration Dossier
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EC number: 274-397-6 | CAS number: 70209-99-3
Endpoint summary
Administrative data
Description of key information
Aquatic toxicity potential of substance FAT 92349/B was evaluated in studies conducted with fish, invertebrates, plants (Lemna) and bacteria. In an acute fish toxicity study conducted according to an internal Ciba guideline equivalent to OECD Guideline 203, the LC50 of the test substance was determined to be 140 mg/L. The EC50 and EC100 values were found to be higher than 194.6 mg/L, in a short term toxicity study with daphnids. The EC50 following 7-days exposure of Lemna minor to the test item, was determined to be (response variable: average specific growth rate, measurement variable: frond number) >100 mg/L, while the NOEC and LOEC were 32 and 65 mg/L, respectively. In a study to evaluate the toxicity of the test substance to microbes, the IC50 (3 h) of the test substance FAT 92349/A was determined to be >320 mg/L. In summary, FAT 92349 can be considered as not toxic to the aquatic ecosystem.
Additional information
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