Registration Dossier
Registration Dossier
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EC number: 259-452-4 | CAS number: 55039-14-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Data on short-term ecotoxicity are available on the Similar substance 01.
Based on the Read Across principle, the results can be considered for the ecotoxicology assessment of the substance.
Justification for Read Across is detailed in the report attached to the IUCLID section 13.
No chronic data are available and the substance is not biodegradable.
According to CLP Regulation 1272/2008, when only acute (short-term) data are available and the substance is not biodegradable, different categories define the classification:
Category Acute 1:
96 hr LC50 (for fish) ≤ 1 mg/L and/or
48 hr EC50 (for crustacea) ≤ 1 mg/L and/or
72 or 96 hr ErC50 (for algae or other aquatic plants) ≤ 1 mg/L
Category Chronic 1:
96 hr LC50 (for fish) ≤ 1 mg/L and/or
48 hr EC50 (for crustacea) ≤ 1 mg/L and/or
72 or 96 hr ErC50 (for algae or other aquatic plants) ≤ 1 mg/L and the substance is not rapidly degradable and/or the experimentally determined BCF≥ 500 (or, if absent, the log Kow≥ 4)
Category Chronic 2:
96 hr LC50 (for fish) > 1 to ≤10 mg/L and/or
48 hr EC50 (for crustacea) > 1 to ≤10 mg/L and/or
72 or 96 hr ErC50 (for algae or other aquatic plants) > 1 to ≤10 mg/L and the substance is not rapidly degradable and/or the experimentally determined BCF≥ 500 (or, if absent, the log Kow≥ 4)
Category Chronic 3:
96 hr LC50 (for fish) > 10 to ≤ 100 mg/L and/or
48 hr EC50 (for crustacea)> 10 to ≤ 100 mg/L and/or
72 or 96 hr ErC50 (for algae or other aquatic plants)> 10 to ≤ 100 mg/Land the substance is not rapidly degradable and/or the experimentally determined BCF≥ 500 (or, if absent, the log Kow≥ 4)
The short-term ecotoxicity values are available for three throphic level. Two cover the Annex VII of REACH.
EC50 (48h) invertebrate Daphnia: >100 mg/L
EbC50 (72h) aquatic plants: 69 mg/L
An acute fish toxicity test was performed with Rainbow trout species, and the TL50 was found to be 6.5 mg/L (Annex VIII of REACH).
As conclusion, according to the classification criteria of the CLP regulation n. 1272/2008, the registered substance classified for the environment, H411 Cat.2
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