Registration Dossier
Registration Dossier
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EC number: 211-309-7 | CAS number: 637-92-3
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The 72-h ErC50 is 1,100 mg/l and the 72-h NOEC is 7.5 mg/l in Pseudokirchneriella subcapitata.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 1 100 mg/L
- EC10 or NOEC for freshwater algae:
- 7.5 mg/L
Additional information
Two studies with algae are available; one study is a GLP compliant OECD guideline study withPseudokirchneriella subcapitata(tested asSelenastrum capricornutum) (SafePharm Laboratories, 2003b). The 72-h ErC50 value from this study is 1,100 mg/l and the 72-h NOEC is 7.5 mg/l. The effect concentrations from this study are more critical than the other study which is an OECD guideline study withDesmodesmus subspicatusand this study has minor deviations (Slovnaft VÚRUP, a.s., 2005d). These values are used in the assessment.
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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