Registration Dossier
Registration Dossier
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EC number: 851-742-4 | CAS number: 464207-51-0
Endpoint summary
Administrative data
Description of key information
Acute and chronic data available are summarised in the table below:
Level of exposure / trophic levels |
Test substance |
Organism |
EC50 (mg/L) |
EC10 (mg/L) |
Flag / reliability |
Performing laboratory |
Reference in IUCLID |
Acute and Chronic / Algae |
Registered substance |
Pseudokirchneriella subcapitata |
72h: > 0.715* |
72h: 0.596 |
K/1 |
Fraunhofer |
Toxicity to aquatic algae and cyanobacteria_ Fraunhofer_2009_K |
Chronic / Aquatic invertebrates |
Registered substance |
Daphnia magna |
Not relevant |
21d: 0.121 |
K/1 |
Fraunhofer |
Long-term toxicity to aquatic invertebrates, Fraunhofer_2009_K |
* the highest attainable test substance concentration in the test conditions
According to the tonnage band of the registered substance, only acute studies on aquatic invertebrates and algae are required.
For the aquatic invertebrates, a waiving is proposed for the acute study because a chronic study is available on the registered substance. This chronic study was performed according to OECD Guideline 211 with GLP certificate.The lowest 21d-EC10 value, based on intrinsic rate of population increase, was determined at 0.121 mg/L, based on time weighted mean measured concentrations.
For the algae, a study was performed on the registered substance according to the OECD guideline 201 with GLP certificate. The 72h-ErC50 value was above 0.715 mg/L, the highest attainable test substance concentration in the test conditions, and the 72h-ErC10 was 0.596 mg/L, based on geometric mean measured concentrations.
Additional information
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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