Registration Dossier
Registration Dossier
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EC number: 203-631-1 | CAS number: 108-94-1
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
With high probability acute not harmful to fish
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 527 mg/L
Additional information
Available information on the short-term toxicity clearly indicates that cyclohexanone is acutely not harmful to fish. The most reliable study was performed under flow through conditions using a method comparable to OECD 203. In this study a LC50 (96h) of 527 mg/L for Pimephales promelas was determined (based on measured concentrations; Brooke et al. 1984). This result is supported by the study, conducted under static test conditions, by Juhnke and Luedemann (1978) in which LC50(48h) values of 536 and 752 mg/l for Leuciscus idus were determined.
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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