Registration Dossier
Registration Dossier
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EC number: 279-408-8 | CAS number: 80157-00-2
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to aquatic invertebrates
EC50 > 1000 mg/L
Toxicity to aquatic algae and cyanobacteria
ErC50 > 101.0 mg/l
Additional information
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 (fish toxicity) when the following criteria are met:
A )Acute (short-term) aquatic hazard
Category Acute 1:
96 hr LC 50 (for fish) ≤ 1 mg/l and/or
48 hr EC 50 (for crustacea) ≤ 1 mg/l 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 available
Category Chronic 1:
96 hr LC 50 (for fish) ≤ 1 mg/l and/or
48 hr EC 50 (for crustacea) ≤ 1 mg/l and/or
72 or 96 hr ErC 50 (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 K ow ≥ 4).
Category Chronic 2:
96 hr LC 50 (for fish) > 1 to ≤10 mg/l and/or
48 hr EC 50 (for crustacea) > 1 to ≤10 mg/l and/or
72 or 96 hr ErC 50 (for algae or other aquatic plants) > 1 to ≤10 mg/l (Note 2)
and the substance is not rapidly degradable and/or the experimentally determined BCF ≥ 500 (or, if absent, the log K ow ≥ 4).
Category Chronic 3:
96 hr LC 50 (for fish) > 10 to ≤ 100 mg/l and/or
48 hr EC 50 (for crustacea) > 10 to ≤ 100 mg/l and/or
72 or 96 hr ErC 50 (for algae or other aquatic plants) > 10 to ≤ 100 mg/l
and the substance is not rapidly degradable and/or the experimentally determined BCF ≥ 500 (or, if absent, the log K ow ≥ 4).
Category Chronic 4
Cases when data do not allow classification under the above criteria but there are nevertheless some grounds for concern. This includes, for example, poorly soluble substances for which no acute toxicity is recorded at levels up to the water solubility (note 4), and which are not rapidly degradable in accordance with section 4.1.2.9.5 and have an experimentally determined BCF ≥ 500 (or, if absent, a log K ow ≥ 4), indicating a potential to bioaccumulate, which will be classified in this category unless other scientific evidence exists showing classification to be unnecessary. Such evidence includes chronic toxicity NOECs > water solubility or > 1 mg/l, or other evidence of rapid degradation in the environment than the ones provided by any of the methods listed in section 4.1.2.9.5.
The EC50 value, calculated in the toxicity test to Daphnia magna, is greather than 1000 mg/l, therefore the test substance is out of classification. No classification is required even for the toxicity test to Algae, as the ErC50 value is greather than 101 mg/l.
In conclusion the test substance is Not Classified for Aquatic toxicity.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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