클로로티몰

4-Chloro-2-isopropyl-5-methylphenol is a white crystals or powder. M.P. 62℃. Almost insoluble in water, soluble in alcohol and oils. Thymol-like odor, but not as sweet, more "medicinal", less condiment-like. However, the taste is definitely sweeter than that of Thymol. A 0.1% solution in water (saturated) has an odor very closely resembling that of Thymol.

4-Chloro-2-isopropyl-5-methylphenol is prepared by reaction of equimolar amounts of propene and 4-chloro-3-methylphenol in the presence of bleaching clay under pressure at 140–160 ℃ or by chlorination of thymol with SO2Cl2 in chloroform. On account of its microbicidal properties, chlorothymol is of importance as a raw material for disinfectants.