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EC number: 807-754-7
CAS number: 89929-57-7
Valid acute studies based on international guidelines are available for
the three aquatic trophic levels (algae, aquatic invertebrates and
fish). Among all data available, a toxic effect was observed for the
three aquatic trophic levels. The fish, Danio rerio, is the most
sensitive species with a 96h-LC50 value at 11.3 mg/L based on
analytically confirmed nominal concentrations. For the algae, Pseudokirchneriella
subcapitata, the 72h- ErC50, 72h-ErC10 and 72h-NOECr values based on
growth rate are 55, 13 and 3.2 mg/L, respectively, based on
time-weighted average concentrations. As the ratio
NOEC/LOEC is higher than 3.2, the NOECr for the algae test is considered
unacceptable and the 72h-ErC10 has been used as critical value. For
the aquatic invertebrates, Daphnia magna, the 48h-EC50 value was
determined to be 21 mg/L based on analytically confirmed nominal
concentrations. In addition, the registered substance was not toxic to
activated sludge of a municipal sewage treatment plant up to the nominal
concentration of 100 mg/L.
Although not requested under REACH Annex VII, the vertebrate acute fish
study was performed to comply with worldwide regulations.
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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