Registration Dossier
Registration Dossier
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EC number: 275-148-4 | CAS number: 71033-19-7
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 substance that, according to QSAR Estimation (EPISUITE, 2017) is considered non ready biodegradable.
According to the CLP Regulation 1272/2008/EC, 4.1.3.3 section, substances can be allocated to one of the aquatic toxicity categories based on the criteria of Table 4.1.0:
a) Acute (short-term) aquatic hazard
Category Acute 1:
< 1 mg/L 96 hr LC50 (for fish) and/or
< 1 mg/L and/or 48 hr EC50 (for crustacea) and/or
< 1 mg/L 72 or 96 hr ErC50 (for algae or other aquatic plants)
b) Long-term aquatic hazard
(iii) Substances for which adequate chronic toxicity data are not available
Category Chronic 1:
< 1 mg/L 96 hr LC50 (for fish) and/or
< 1 mg/L and/or 48 hr EC50 (for crustacea) and/or
< 1 mg/L 72 or 96 hr ErC50 (for algae or other aquatic plants)
Category Chronic 2:
>1 to ≤10 mg/L 96 hr LC50 (for fish) and/or
>1 to ≤10 mg/L 48 hr EC50 (for crustacea) and/or
>1 to ≤10 mg/L 72 or 96 hr ErC50 (for algae or other aquatic plants)
and the substance is not rapidly degradable and/or the experimentally determined BCF ≥ 500 (or, if absent, the log Kow ≥ 4).
Category Chronic 3:
>10 to ≤ 100 mg/L 96 hr LC50 (for fish)and/or
>10 to ≤ 100 mg/L 48 hr EC50 (for crustacea) and/or
>10 to ≤ 100 mg/L 72 or 96 hr ErC50 (for algae or other aquatic plants)
and 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 two throphic levels:
EC50 (48h) invertebrate Daphnia: 54.9 mg/L
EC50 (7 days) aquatic plants: > 91.0 mg/L (growth rate), NOEC 4.27 mg/L (growth rate).
The acute aquatic toxicity based on the lowest of the available toxicity values is between 10 and 100 mg/L (Daphnia 54.9 mg/L).
The only available growth rate aquatic plant long term toxicity data should be supported by a long term toxicity data on another thropic level (TGD Part II).
As conclusion, according to the classification criteria of the CLP regulation n. 1272/2008, the registered substance is classified for the environment as H412, Category Chronic 3.
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