RIFM fragrance ingredient safety assessment, cyclohexanol, CAS Registry Number 108-93-0.

Abstract Summary The existing information supports the use of this material as described in this safety assessment. Cyclohexanol was evaluated for genotoxicity, repeated dose toxicity, reproductive toxicity, local respiratory toxicity, phototoxicity/photoallergenicity, skin sensitization, and environmental safety. Data show that cyclohexanol is not genotoxic. Data on cyclohexanol provide a calculated margin of exposure (MOE) >100 for the repeated dose toxicity and reproductive toxicity endpoints. Data show that there are no safety concerns for cyclohexanol for skin sensitization under the current declared levels of use. The phototoxicity/photoallergenicity endpoints were evaluated based on ultraviolet (UV) spectra; cyclohexanol is not expected to be phototoxic/photoallergenic. The local respiratory toxicity endpoint was evaluated using the threshold of toxicological concern (TTC) for a Cramer Class I material, and the exposure to cyclohexanol is below the TTC (1.4 mg/day). The environmental endpoints were evaluated; cyclohexanol was found not to be persistent, bioaccumulative, and toxic (PBT) as per the International Fragrance Association (IFRA) Environmental Standards, and its risk quotients, based on its current volume of use in Europe and North America (i.e., Predicted Environmental Concentration/Predicted No Effect Concentration [PEC/PNEC]), are