Famotidine

1,2 dimethyl-2-thiopseudourea hydroiodide 1,2  dimethyl-2-thiopseudourea hydroiodide :

CAS Number: 41306-45-0, Mol Formula: C3H9IN2S, Mol Wt: 232.09 ;
Famotidine Famotidine :

3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]-N- sulphamoyl propanimidamide ; CAS : 76824-35-6 ; C8H15N7O2S3 ; MW: 337.45 ;
Famotidine EP Impurity A Famotidine Impurity A :

3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanimidamide HCl salt ; CAS : 88061-72-7 ; C8H16Cl2N6S2 ; MW: 331.29 ;
Famotidine EP Impurity B Famotidine Impurity B :

3,5-bis[2-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]ethyl]-4H-1,2,4,6-thiatriazine 1,1-dioxide ; CAS : 89268-62-2 ; C16H23N11O2S5 ; Mol. Wt.: 561.75 ;
Famotidine EP Impurity C Famotidine Impurity C:

3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]-N-sulphamoylpropanamide ; CAS : 76824-17-4 ; C8H14N6O3S3 ; MW: 338.43 ;
Famotidine EP Impurity D Famotidine Impurity D:

3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanamide ; CAS : 76824-16-3 ; C8H13N5OS2 ; MW: 259.35 ;
Famotidine EP Impurity E Famotidine Impurity E:

2,2-[Disulphanediylbis(methylenethiazole-4,2-diyl)]diguanidine ; CAS : 129083-44-9 ;

C10H14N8S4 ; MW: 374.53 ;
Famotidine EP Impurity F Famotidine Impurity F:

3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanoic acid ; CAS : 107880-74-0 ; C8H12N4O2S2 ; MW: 260.34 ;
Famotidine EP Impurity G Famotidine Impurity G:

N-Cyano-3-[[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanimidamide ; CAS : 76823-97-7 ; C9H13N7S2 ; MW: 283.38 ;
Famotidine EP Impurity I Famotidine Impurity I:

3-[[[2-[(Diaminomethylene)amino]-thiazol-4-yl]methyl]sulphinyl]-N-sulphamoylpropanamide ; CAS : 1020719-36-1 ; C8H14N6O4S3 ; Mol. Wt.: 354.43 ;
Famotidine EP Impurity J Famotidine Impurity J:

Methyl 3-[[[2-[(diaminomethylidene)amino]thiazol-4-yl]methyl]sulfanyl]propanoate ; CAS : 76824-14-1 ; C9H14N4O2S2 ; Mol. Wt.: 274.36 ;