Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 413-910-1 | CAS number: 1467668-33-2 LUPEROX 610-E-35; LUPEROX 610-E-50; LUPEROX 610-EN-50; LUPEROX 610-M-50; LUPERSOL 610; LUPERSOL 610-M-50
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The acute toxicity of 3-hydroxy-1,1-dimethylbutyl 2-ethyl-2-methylheptaneperoxoate was evaluated with Cyprinus carpio in a study performed in accordance with OECD testing guideline 203 and GLP requirements. LC50-96h was determined to be 1 mg/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 1 mg/L
Additional information
The acute toxicity of 3-hydroxy-1,1-dimethylbutyl 2-ethyl-2-methylheptaneperoxoate was evaluated with Cyprinus carpio in a study performed in accordance with OECD testing guideline 203 and GLP requirements.
Ten fish per concentration were exposed for a maximum of 96 hours in a flow through system to nominal concentrations of 1.0, 1.5, 2.0, 2.5 and 3.0 mg/L.
Within 24 hours all fish had died at 3 mg/L. After 48 hours, all fish had died at 1.5 to 2.5 mg/L. At the end of the test, 50% mortality was recorded at 1 mg/L. Measured concentrations were between 80 and 110 % relative to nominal.
The LC50-value decreased from 2.5 mg/L after 24 hours of exposure to 1 mg/L at the end of the 96-hour exposure period. Hence, no stabilization of effects was observed at the end of the test period.
As a consequence, 3-hydroxy-1,1-dimethylbutyl 2-ethyl-2-methylheptaneperoxoate is considered as highly toxic to fish (Acute toxicity Category ).
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
