Famotidine EP Impurity D

3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanamide; 3-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]propanamide; 3-[[2-(Diaminomethyleneamino)thiazol-4-yl]methylthio]propanamide; 3-[2-(Diaminomethyleneamino)-1,3-thiazol-4-ylmethylthio]propanamide; Famotidine propanamide,Famotidine Related Compound D (USP); Famotidine Degradation Impurity 2; Famotidine Impurity D (IP);