Famotidine EP Impurity J

Famotidine Acid Methyl Ester|Famotidine Acid Methyl Ester;|methyl 3-(((2-((diaminomethylene)amino)thiazol-4-yl)methyl)thio)propanoate|methyl 3-[({2-[(diaminomethylidene)amino]-1,3- thiazol-4-yl}methyl)sulfanyl]propanoate hydrochloride|Methyl 3-[[[2-[(diaminomethylidene)amino]thiazol-4-yl]methyl]sulfanyl]propanoate ;|Methyl 3-[[2-(diaminomethylideneamino)-1,3-thiazol-4-yl]methylsulfanyl]propanoate;