a functional group consisting of an oxygen atom and a hydrogen atom (-OH).
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2H-1-Benzopyran-2-one, 3-(4-bromophenyl)-4-hydroxy-
Cyclohexanone, 2-hydroxy-2,5-dimethyl-
5,11,17,23-tetra-tert-butyl-25-hydroxy-27-[(ethoxycarbonyl)-methoxy]-26,28-bis[N-(4'-nitrophenyl)aminocarbonylmethoxy]thiacalix[4]arene
