Registration Dossier
Registration Dossier
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EC number: 432-520-2 | CAS number: 232938-43-1
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Acutely toxic to algae.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 3 mg/L
- EC10 or NOEC for freshwater algae:
- 0.29 mg/L
Additional information
In a GLP guideline study according to OECD 201 the EC50 value for algal growth was determined to be 3 mg/L and the EC10 value for algal growth was determined to be 0.29 mg/L (RCC 1999). This result is supported by two further GLP studies in which EC50 values for algal growth of 3.2 and 6.3 mg/L were determined (RCC 2006). Therefore the tested substance is considered as acutely toxic to algae.
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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