ABC51S: Abacavir Diamino Purine Impurity

9H-Purine-2,6-diamine hemisulfate ;

CAS # 69369-16-0 (hemisulfate) ; 1904-98-9 (base) ;

C5H6N6 . 1/2 H2SO4 ;
Mol. Wt.: 199.20 ;