Registration Dossier
Registration Dossier
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EC number: 277-155-8 | CAS number: 72968-81-1
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, 2016) is considered non ready biodegradable.
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 and on Similar substance 01.
EC50 (48h) invertebrate Daphnia: > 100 mg/L
EC50 (7 days) aquatic plants: > 0.69 mg/L (growth rate)
No acute toxicity (i.e. L(E)C50) was recorded in none of the experiments conducted, up to the higher concentration reached in the tests on lemna gibba;
The OECD 201 results on the Similar substance 02 were reported (ErC50 12.8 mg/L) but not considered for the environmental risk evaluation, considering that the colour of test substance could influence the photosynthesis capacity of algae cells in the test solution; The avalable Lemna gibba aquatic plant test on Similar substance 01 is considered more appropriate.
As conclusion, the acute aquatic toxicity based on the lowest of the available toxicity values is considered > 100 mg/L and out of the CLP criteria (> 100 mg/L).
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