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EC number: 200-753-7
CAS number: 71-43-2
The 72 hour EC50 is 100 mg/L and the 72 hour NOEC is 34 mg/L based on growth rate of Selenastrum capricornutum.
Two algal studies are available which report results after 72 hours
exposure. Both studies used Selenastrum capricornutum in standard
OECD 201 studies using closed systems and the effect values are based on
measured concentrations. Following the same approach as set out in the
EU RAR (2008), as Galassi et al. (1988) only derive an EC50 value with
no information available on the no effect level, the results found by
TNO (2001) will be used for the further effects assessment. As TNO
(2001) reports both EC50 and NOEC, it is used as the key study and this
study was also identified as the key study for algal toxicity in the EU
RAR for benzene (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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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