Diphenylmethanol (benzhydrols)

Diphenylmethanols are a chemical class of organic compounds, also called benzhydrols, built on a diphenyl-substituted carbinol carbon in which a carbon bearing a hydroxyl or ether oxygen is flanked by two phenyl rings. Members differ by the groups attached at that oxygen. The family includes the ethanolamine antihistamines, which act as antagonists at histamine and muscarinic acetylcholine receptors, producing sedating and, at high doses, deliriant effects. The oxygen-bearing diphenylmethyl core is the defining structural feature of the class.