Registration Dossier
Registration Dossier
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EC number: 290-476-8 | CAS number: 90170-43-7
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The effect of biomass was greater than the effect on growth rates over the 72 hour test period.
The ErC50 and EbC50 values are in the same order of magnitude and either can be used for classification purposes.
The results based on growth rates are cited below.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 9.4 mg/L
- EC10 or NOEC for freshwater algae:
- 5.5 mg/L
Additional information
The study was performed in 1995 using valid OECD methodology and performed in accordance to GLP requirements.
However, the report does not fully evaluate the data and the EC10 and NOEC have been derived based on tabulated data. There was no supporting analysis performed, although the substance is known to be stable.
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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