Registration Dossier
Registration Dossier
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EC number: 226-854-6 | CAS number: 5510-99-6
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
LC50 (96 h) >0.10 mg/L and <1 mg/L (OECD 203)
Key value for chemical safety assessment
Additional information
Phenol 2,6 -bis(1 -methylpropyl) was evaluated for its acute aquatic toxicity. The LC50 at 96 hours exposure was determined to be >0.10 mg/, concluding that the test substance is toxic to fish upon short-term exposure.
Test method:
The test method followed the OECD Guidelines for Testing of Chemicals No. 203 "Fish, Acute Toxicity Test. Deviations are in the number of fish per concentration and in the absent analytical confirmation of nominal concentrations (this is not expected to compromise the quality of the study results).
The screening 96 h acute toxicity study was conducted with rainbow trout at nominal test concentrations of 0.10, 1.0 and 10 mg/l. The number of fish was 2 per test concentration in a preliminary study. In the final study, the number of fish was 10 in two replicates at 0.10 mg/l. In parallel a control and a solvent control group were tested. Mortality ocurred in the range finding study at 1.0 mg/l (2/2) and 10 mg/l (2/2).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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