for the following products
[3-[[[2-(Diaminomethyleneamino)-4-thiazolyl]methyl]thio]propionyl]sulfamide hydrochloride | [3-[[[2-(Diaminomethyleneamino)-4-thiazolyl]methyl]thio]propionyl]sulfamide hydrochloride (famotidine impurity) and 3-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]-N-(aminosulfonyl)propanamide monohydrochloride