Registration Dossier
Registration Dossier
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EC number: 255-925-4 | CAS number: 42739-64-0
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
With high probability acutely not harmful to aquatic plants
Key value for chemical safety assessment
Additional information
There are no studies available that assess the chronic toxicity of the test substance to aquatic plants. However, as the test substance belongs to the substance category of Phthalocyanines whose category members resemble in their chemical structure as well as in their phys-chem properties, a read-across approach was used to cover this endpoint.
The acute toxicity of Phthalocyanines to Lemna gibba was investigated by a test on CAS 59160-79-1 according to OECD 221. The study was conducted according to GLP and the exposure lastet 7 days. Acute toxicity (frond number) resulted in EC50 > 10 mg/L [Ibacon 2015a].
Another study on Lemna gibba was done with CAS 28901-96-4 following OECD guideline 221 and GLP. Lemna gibba were exposed to the test substance for 7 days. Regarding the growth rate (frond number) of the species a EC 50 > 100 mg/Lwas determined [Ibacon 2015b].
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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