Registration Dossier
Registration Dossier
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EC number: 946-366-3 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to aquatic invertebrates
EC50 (48 h) > 259 mg/l
Toxicity to aquatic algae and cyanobacteria
ErC50 (7 d) > 100 mg/l
Additional information
No information on the "aquatic toxicity" of the Target Substance is available. However data on Similar Substance 02 has been taken into account for the assessment. More details about the substance similarity are reported in section 13.
Short-term toxicity to aquatic invertebrates
In the key study the analogue substance was tested for acute toxicity to aquatic invertebrates following EU Method C2 (NONS, 1997). Under the experimental conditions the EC50, 48h is > 259 mg/l.
In the supporting study the substance was tested for acute toxicity to aquatic invertebrates following EU Method C2.
Under the experimental conditions the EC50 (NOEC), 48h is > 61 mg/l. During the test a concentration loss of the substance was observed with a sediment in the bottom of the testing vessel. Therefore the EC50 is higher than the solubility limit of the substance in the test conditions.
Toxicity to aquatic algae and cyanobacteria
The analogue substance was tested for acute toxicity to aquatic algae following EU Method C3 (NONS, 1988). Under the experimental conditions the EC50, 72h > 40.9 mg/l for biomass and > 100 mg/l for growth rate.
Justification for classification or non-classification
According to the CLP Regulation (EC n. 1272/2008), Part 4: Environmental Hazards, the substances can be classified for hazardous to the aquatic environment when the following criteria are met:
A )Acute (short-term) aquatic hazard
Category Acute 1: 96 hr LC 50 (for fish) and/or 48 hr EC 50 (for crustacea) and/or 72 or 96 hr ErC 50 (for algae or other aquatic plants) ≤ 1 mg/l
B) Long-term aquatic hazard
(iii) Substances for which adequate chronic toxicity data are not availableand the substance is not rapidly degradable and/or the experimentally determined BCF ≥ 500 (or, if absent, the log K ow ≥ 4).
Category Chronic 1: 96 hr LC 50 (for fish) and/or 48 hr EC 50 (for crustacea) and/or 72 or 96 hr ErC 50 (for algae or other aquatic plants) ≤ 1 mg/l
Category Chronic 2: 96 hr LC 50 (for fish) and/or 48 hr EC 50 (for crustacea) and/or 72 or 96 hr ErC 50 (for algae or other aquatic plants)> 1 to ≤10 mg/l
Category Chronic 3: 96 hr LC 50 (for fish) and/or 48 hr EC 50 (for crustacea) and/or 72 or 96 hr ErC 50 (for algae or other aquatic plants) > 10 to ≤ 100 mg/l
Based on the above results, the test substance has not been classified for aquatic toxicity.
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