Inositol, a C₆H₁₂O compound widely distributed in living organisms, is a mixture of hexahydroxycyclohexane stereoisomers. Of these, seven are achiral meso compounds and two are enantiomers. The chief natural isomer is cis-1,2,3,5-trans-4,6-cyclohexanehexol, known as myo-inositol.