Cysteamine hydrochloride CIMETIDINE DIHYDROCHLORIDE IMP D 4-[[(2-aminoethyl)thio]methyl]-5-methylimidazole N-Cyanoimido-S,S-dimethyl-dithiocarbonate 2-Cyaniminothiazolidine 4-HYDROXYMETHYL-5-METHYLIMIDAZOLE Cimetidine guanylurea cimetidine N-cyano-N',N''-dimethylguanidine N-Cyano-N'-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]thio]ethyl]carbamimidic acid methyl ester Cimetidine Impurity 2 2-cyano-1,3-bis(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)guanidine N-Cyano-3-(cyanoaMino)-N'-Methyl-7,8-dithia-2,4,11-triazadodec-2-en-12-iMidaMide (CiMetidine IMpurity) Cimetidine Amide Dihydrochloride N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea CIMETIDINE SULPHOXIDE DIHYDROCHLORIDE N-CYANO-N',N'-DIMETHYLGUANIDINE (5-Ethyl-1H-imidazol-4-yl)methanol