title: Mass fragmentographic identification of O-Methylcorpalline in Pilosocereus guerreronis.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003889:Desert Climate; D007546:Isoquinolines / Q000302:isolation & purification*; D008800:Mexico; D010944:Plants / Q000032:analysis*
chemical_list: D007546:Isoquinolines