N,N'-dimethyl-5-hydroxy-5-(2-cyclohexyl-1,1-diphenylethyl)hydantoin

N,N'-dimethyl-5-hydroxy-5-(3-hydroxy-3-methyl-1,1-diphenylbutyl)hydantoin

N,N'-dimethyl-5-hydroxy-5-benzylhydantoin

N,N'-dimethyl-5-hydroxy-5-(1,1,3-triphenylpropyl)hydantoin

4-甲基苯硫代磺酸 S-(4-甲基苯基)酯