5,11-Dimethyl-6H-pyrido(4,3-b)carbazol-9-ol monohydrochloride 51131-85-2 52238-35-4 6H-Pyrido(4,3-b)carbazol-9-ol, 5,11-dimethyl-, monohydrochloride ELLIPTICINE ANALOG NSC 264136