26833-87-4 BRN 5687925 Cephalotaxine, 4-methyl (2R)-2-hydroxy-2-(4-hydroxy-4-methylpentyl)butanedioate (ester) (9CI) Cephalotaxine, 4-methyl 2-hydroxy-2-(4-hydroxy-4-methylpentyl)butanedioate (ester), (3(R))- (9CI) Cephalotaxine, 4-methyl-, 2-hydroxy-2-(4-hydroxy-4-methylpentyl)butanedioate (ester) Homoharringtonine Homoharringtonine (8CI) NSC 141633