Methyl phenyl sulfoxide is the organosulfur compound with the formula CH3S(O)C6H5. A low-melting white solid, it is an oxidized derivative of thioanisole. The compound is a prototypical chiral sulfoxide. As such it has been prepared by asymmetric oxidation. Methyl phenyl sulfoxide is the organosulfur compound with the formula CH3S(O)C6H5. A low-melting white solid, it is an oxidized derivative of thioanisole. The compound is a prototypical chiral sulfoxide. As such it has been prepared by asymmetric oxidation.