Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 244-121-9 | CAS number: 20941-65-5
Endpoint summary
Administrative data
Description of key information
Additional information
Table: Overview of key aquatic toxicity data available for the substance
Study |
Species |
Guideline / GLP |
Endpoint |
Effect value |
Fish short-term toxicity |
Oncorhynchus mykiss |
OECD TG 203 / GLP |
96-h LC50 |
344 µg/L |
Daphnia short-term toxicity |
Daphnia magna |
OECD TG 202 / GLP |
48-h EC50 |
64 µg/L |
Alga toxicity |
Raphidocelis subcapitata |
OECD TG 201 / GLP |
72-h ErC50 72-h ErC10 |
> 171 µg/L 34 µg/L |
Microorganisms toxicity |
Activated sludge |
OECD TG 209 / GLP |
3-h EC50 3-h EC10 |
> 1000 mg/L > 1000 mg/L |
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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