Registration Dossier
Registration Dossier
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EC number: 950-746-4 | CAS number: -
Endpoint summary
Administrative data
Description of key information
ISO 7346-1 method: 96 h LC50 for freshwater fish: 688.1 mg/L
OECD Guideline 202, EU Method C.2: EC50 for freshwater invertebrates: 1.94 mg/L
OECD Guideline 201, EU Method C.3: EC50 for freshwater algae 32.1 mg/L
The substance is readily biodegradable.
According with the Table 4.1.0 of Annex I of the CLP Regulation 1272/2008/EC the substance is not classified for the environment.
Additional information
Algae: According to the results of the OECD GLP 201 study significant inhibitory effects were determined for growth rate and yield at test item concentrations of 31.3 mg/L (nominal) and above. The overall LOEC was therefore determined to be 31.3 mg/L (nominal), the corresponding NOEC was set at 9.77 mg/L (nominal). The EC10-value for growth rate (ErC10) was determined to be 29.5 mg/L (nominal). The EC10-value for yield (EyC10) was 15.2 mg/L (nominal). The EC20-value for growth rate (ErC20) was determined to be 30.5 mg/L (nominal). The EC20-value for yield (EyC20) was 18.9 mg/L (nominal). The EC50-value for growth rate (ErC50) was determined to be 32.1 mg/L (nominal). The EC50-value for yield (EyC50) was 26.1 mg/L (nominal).
Daphnia: According to the results of the OECD GLP 202 study, the EC50 (48 h) of the test item was determined to be 1.94 mg/L (nominal). The corresponding NOEC (48 h) could not be observed. The most sensitive species tested is are daphnids. The EC50 of the acute toxicity on daphnids is taken as the basis for risk assessment.
Fish: According to the results of the GLP ISO 7346-II study with zebrafish Danio rerio, the LC0 (96 h) was determined to be equal or greater than 1000 mg/l (nominal) or 393.1 mg/l (arithmetic mean of measured DOC). The LC50 (96 h) was determined to 1750 mg/L (nominal) or 688.1 mg/l (arithmetic mean of measured DOC).
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