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EC number: 285-597-8
CAS number: 85117-47-1
Study meets criteria for Klimisch score 2 because it generally follows an internationally recognised method (EPA OTS 797.1050) and was carried out to Good Laboratory Practice. However, there was no analytical confirmation of the test concentrations. In addition, only 2 replicates per concentration were used and test vessels containing 1000 mg/l nominal WAF loadings were slightly cloudy at the start of the test and at 24 hours.
The EC50 in freshwater algae is considered to be >1000mg/l. Two of the
studies available support this
conclusion, while the one remaining study did not exceed 100 mg/l,
although the data support the conclusion
that the EC50 is above this dose level. As this dose level has been
included in the other studies conducted, it is
considered acceptable to consider this as supporting data but to
conclude that the highest dose level attained
from studies considered reliable is both appropriate and adequately
supported by the data.
The substance is, therefore, considered not toxic to algae.
Nevertheless, adequate controls will be in place
during production and use to ensure that the substance is not released
to the environment.
The toxicity of the substance has not been assessed using marine algal
species, but it is considered likely to be
similar to freshwater species.
The following information is taken into account for effects on algae /
cyanobacteria for the derivation of PNEC:
The toxicity of the substance has been measured experimentally with
freshwater algae. Due to the extremely low
water solubility all studies have been conducted using Water Accomodated
Fractions and completed as limit
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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