Registration Dossier
Registration Dossier
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EC number: 938-702-2 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
One reliable (Klimisch 1) short-term toxicity study for invertebrates was available for Cyclohexanol, 4-C11-12-alkyl, branched. The short-term toxicity of Cyclohexanol, 4-C11-12-alkyl, branched to Daphnia magna was reported by Brougher et al., (2012) in an OECD 202 guideline and GLP compliant study. Daphnia were exposed to the test substance in nominal concentrations based on WAF loading rates for 48 hours, resulting in a 48-hr EL50 of >100 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 100 mg/L
Additional information
The short-term toxicity of Cyclohexanol, 4-C11-12-alkyl, branched to invertebrates has been evaluated for this dossier. One reliable (Klimisch 1) short-term toxicity study for invertebrates was available for Cyclohexanol, 4-C11-12-alkyl, branched. The short-term toxicity of Cyclohexanol, 4-C11-12-alkyl, branched to Daphnia magna was reported by Brougher et al., (2012) in an OECD 202 guideline and GLP compliant study.
The cladoceran, Daphnia magna, was exposed for 48 hours under static conditions to five nominal water accommodated fraction (WAF) loading rates of Cyclohexanol, 4 -C11 -12 -alkyl, branched ranging from 6.3 to 100 mg/L. Based on WAF loading rates, the 48-hour EL50 value was > 100 mg/L, the highest concentration tested. Daphnids exposed to the test substance at concentrations ≤ 100 mg/L appeared normal with no immobility or overt signs of toxicity. The 48-hour no-immobility level and the NOELR were both 100 mg/L.
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