Synonyms: Methylquinidinium, iodide;Quinidine methiodide;Quinidine-alpha-methiodide;1-Methylquinidinium iodide;Quinidinium, methyl-, iodide;(9S)-9-Hydroxy-6'-methoxy-1-methylcinchonan-1-ium iodide;Cinchonanium, 9-hydroxy-6'-methoxy-1-methyl-, iodide, (9S)-;Cinchonan-1-ium, 9-hydroxy-6'-methoxy-1-methyl-, iodide, (9S)-;AC1L21LD;LS-53730;(S)-[(2R,5R)-5-ethenyl-1-methyl-1-azoniabicyclo[2.2.2]octan-2-yl]-(6-methoxyquinolin-4-yl)methanol iodide;42982-87-6