FMT02B: Famotidine EP 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 (Base) ; 109467-08-5 (Dimaleate) ;

C16H23N11O2S5 ;

Mol. Wt.: 561.75 ;