Registration Dossier
Registration Dossier
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EC number: 415-070-1 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to fish:
LC50 (96 h) = 49 mg/l
Short-term toxicity to aquatic invertebrates:
EC50 (48 h) > 100 mg/l
Toxicity to aquatic algae:
ErC50 > 10 mg/l
Toxicity to microorganisms:
IC 50 (30 min) >100 mg/l
Additional information
Adequate chronic toxicity data are not available for the substance; therefore the aquatic toxicity assessment and classification are based mainly on the short-term toxicity data available on the target substance. Despite the substance has a log Kow very lower than 4 (indicating a low potential for bioaccumulation), it is not rapidly (bio)degradable.
According to the CLP Regulation (EC 1272/2008), acute aquatic toxicity is normally determined using a fish 96-hour LC50, a crustacean species 48-hour EC50 and/or an algal species 72- or 96-hour EC50.
The short-term toxicity to fish was investigated to Cyprinus carpio according to the method C.1 of EEC-Directive 92/69 EEC. The LC50 (96h) and NOEC were found to be 49 mg/l and 32 mg/l, respectively.
The short-term toxicity to invertebrates was investigated to Daphnia magna according to the method C.2 of EEC-Directive 92/69 EEC. The EC50 (48 h) was found to be greater than 100 mg/l.
Toxicity to aquatic algae was investigated to Scenedesmus subspicatus according to the guideline OECD 201, the method C.3 of EEC -Dierective EEC and ISO International Standard 8692. The ErC50 (72 h) for algicidal effect was found to be > 10 mg/l.
According to the CLP Regulation (EC 12720/2008) criteria for the identification of the classification categories for hazardous to the aquatic environment, the acute toxicity test on fish and the toxicity to aquatic algae fixed the effect levels within the range > 10 to ≤ 100 mg/l.
Therefore, the substance is classified as Category Chronic 3 according to the CLP Regulation (EC 1272/2008).
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