API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Famotidine

EP Impurity-F

3-[[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanoicacid EP-Impurity-F
Famotidine

Famotidine Related Compound-A

(3-[[2-(diaminomethyleneamino)thiazol-4-yl]methylsulfinyl]-N'-sulfamoylpropanimidamide) Famotidine-Related-Compound-A
Famotidine

EP Impurity A

3-[[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanimidamide
Famotidine

EP Impurity E

2,2’-[disulphanediylbis(methylenethiazole-4,2-diyl)]diguanidine EP-Impurity-E
Famotidine

EP Impurity D

3-[[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanamide EP-Impurity-D
Famotidine

EP Impurity C

3-[[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]-N-sulphamoylpropanamide