Registration Dossier
Registration Dossier
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EC number: 213-903-1 | CAS number: 1064-48-8
Endpoint summary
Administrative data
Description of key information
Short term toxicity to aquatic invertebrates: EC50 (48h): > 150 mg/L
Toxicity to aquatic plants other than algae: EC 50 > 2000 mg/l for dry weight.
Additional information
Short term toxicity to aquatic invertebrates:
No tests are available on the substance, nevertheless, in order to complete the assessment on aquatic toxicity, tests conduced on a very similar substance were considered. The complete justification for the read across approach is attached at section 13.
The limit test conducted does not show mortality at the tested concentration of 180 mg/L. the EC50(48h) correspond to 150 mg/l after the correction.
Toxicity to aquatic plants other than algae
No tests are avilable on the substance, nevertheless, in order to complete the assessment on aquatic toxicity, tests conduced on very similar substance were considered. The complete justification for read across approach is attached at section 13.
A GLP guideline study according to OECD 221 using Lemna gibba as a test organism was considered for the assessment. Under the test conditions the EC50 for grow rate and biomass is > 2000 mg/l
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 available and 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 Chronic2: 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
Both in the Daphnia and Lemna studies the substance has been tested and no effects have been observed. It can be therefore possible to conclude that the test susbtance doesn't induce toxicity for the aquatic compartment. Similar behaviour is expected for the Target Substance, which has not been classified, according to the CLP Regulation (EC 1272/2008
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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