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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 441-420-8 | CAS number: 113889-23-9
Endpoint summary
Administrative data
Description of key information
The aquatic toxicity studies for Cyclobutanate are listed in the table below:
Species |
Guideline |
Results in mg/l |
Remarks |
Oncorhynchus mykiss |
OECD 203 |
96h-LC50: 3.6 mg/l semi-static Results based on time-weighted average mean measured concentrations |
Key study, GLP, rel. 1 |
Daphnia magna |
OECD 202 |
48h-EC50: 4.7 mg/l Static Results based on the mean measured test concentrations |
Key study, GLP, rel. 1 |
Scenedesmus subspicatus |
OECD 201 |
72h-ErC50: 1.95 mg/l 72h-NOErC: 0.163 mg/l Static Results based on the concentrations measured in the preliminary stability tests |
Key study, GLP, rel. 2 |
Activated sludge |
OECD 209 |
3h-EC50: > 1000 mg/l 3h-NOEC: 1000 mg/l |
Key study, GLP, rel. 1 |
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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