Registration Dossier
Registration Dossier
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EC number: 221-111-2 | CAS number: 3006-86-8
Endpoint summary
Administrative data
Description of key information
Additional information
Short-term toxicity to fish
The 96 h-LC50 and 96 h-LL50 values were determined to be > 0.64 mg/L and > 100 mg/L.
Long-term toxicity to fish
A fish early life toxicity study with Danio rerio was performed. The most sensitive endpoint was the fish survival at test end, thus the NOEC / LOEC were determined to be 64.5 / 153 µg/L (mean measured).
Short-term toxicity to aquatic invertebrates
The 48-hour EC50 of cyclohexylidenebis[tert-butyl] peroxide in a static test system is > 1000 mg/L expressed as initial loading rate (EL50), corresponding to 0.598 mg/L expressed as actual concentration (measured concentration at the beginning of the test in the saturated solution obtained from the loading rate 1000 mg/L) for Daphnia magna.
Long-term toxicity to aquatic invertebrates
No effects on daphnids were observed in the long-term toxicity test. Thus, the NOEC was determined to be >= 0.112 mg/L (time-weighted mean measured concentration).
Toxicity to aquatic algae and cyanobacteria
The 72 hour ErC50 and the EbC50 of cyclohexylidenebis[tert-butyl] peroxide in a static test system are > 10.0 mg/L expressed as initial loading rate (EL50), corresponding to approximately 0.5 mg/L expressed as acutual concentration (the assumed limit of solubility), for Pseudokirchneriella subcapitata.
Toxicity to microorganisms
The 3-hour EC50 of cyclohexylidenebis[tert-butyl]peroxide was determined to be > 20 mg/L for activated sludge. The 3-hour EC10 of the test substance was > 20 mg/L.
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