Registration Dossier
Registration Dossier
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EC number: 691-719-4 | CAS number: 1072957-71-1
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
96-h EC50 (growth rate): >890 µg/L (green alga, OECD 201, Softcheck, 2010)
96-h NOEC (growth rate): 420 µg/L (green alga, OECD 201, Softcheck, 2010)
96-h EC50 (growthrate): 640 µg/L(saltwater, marine diatom, OECD 20, Softcheck, 2011)
96-h NOEC (growthrate): 200 µg/L(saltwater, marine diatom, OECD 20, Softcheck, 2011)
Key value for chemical safety assessment
- EC50 for marine water algae:
- 640 µg/L
- EC10 or NOEC for freshwater algae:
- 420 µg/L
- EC10 or NOEC for marine water algae:
- 200 µg/L
Additional information
Two studies (one with a freshwater and one with a saltwater species) are available for this endpoint. All are considered to be relevant, reliable, adequate for risk assessment, and adequate for classification purposes. The EC50 and NOEC results (for freshwater and saltwater species separately) are carried forward for risk assessment purposes. These tests with algae are also considered to be long-term tests.
Remark: due to a limitation of the IUCLID system it was not possible to enter a ">" sign into the key value field above (EC50/LC50 for freshwater algae). Therefore the field was left empty.
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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