Registration Dossier
Registration Dossier
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Reaction mass of 5-[(2R)-butan-2-yl]-2-[(1R,2R)-2,4-dimethylcyclohex-3-en-1-yl]-5-methyl-1,3-dioxane and 5-[(2R)-butan-2-yl]-2-[(1R,6R)-4,6-dimethylcyclohex-3-en-1-yl]-5-methyl-1,3-dioxane and 5-[(2S)-butan-2-yl]-2-[(1R,2R)-2,4-dimethylcyclohex-3-en-1-yl]-5-methyl-1,3-dioxane and 5-[(2S)-butan-2-yl]-2-[(1S,2R)-2,4-dimethylcyclohex-3-en-1-yl]-5-methyl-1,3-dioxane and 5-[(2S)-butan-2-yl]-2-[(1S,6R)-4,6-dimethylcyclohex-3-en-1-yl]-5-methyl-1,3-dioxane
EC number: 700-927-7 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
In a 72 h toxicity study according to OECD guideline Nr. 201 and in compliance with GLP principles. Freshwater algae Scenedesmus subspicatus (new name: Desmodesmus subspicatus) were exposed to the substance. Based on the geometric mean measured test concentrations of the centrifuged test samples the EC50 values were estimated to be greater than 0.50 mg/L. Correspondingly the No Observed Effect Concentration (NOEC) was 0.50 mg/L (determined in the definitive test).
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 0.5 mg/L
- EC10 or NOEC for freshwater algae:
- 0.5 mg/L
Additional information
Slightly other numbers have been derived in an Annex XV report (2015). Awaiting the new IUCLID of the lead registrant the results will remain as they are.
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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