Synonyms: Pyrrolidine,1-[2-[4-(3,4-dihydro-7-methoxy-2,2-dimethyl-3-phenyl-2H-1-benzopyran-4-yl)phenoxy]ethyl]-,trans-; Pyrrolidine,1-[2-[p-(7-methoxy-2,2-dimethyl-3-phenyl-4-chromanyl)phenoxy]ethyl]-, trans-(8CI);1-[2-[p-(trans-7-Methoxy-2,2-dimethyl-3-phenyl-4-chromanyl)phenoxy]ethyl]pyrrolidine;3,4-trans-2,2-Dimethyl-3-phenyl-4-[p-(b-pyrrolidinoethoxy)phenyl]-7-methoxychroman; 67/20;Centchroman; Ormeloxifene; trans-Centchroman