Penicillin G benzathine (tetrahydrate) (Standard)

O=C([C@@H](C(C)(C)S[C@]1([H])[C@@H]2NC(CC3=CC=CC=C3)=O)N1C2=O)O.O=C([C@@H](C(C)(C)S[C@]4([H])[C@@H]5NC(CC6=CC=CC=C6)=O)N4C5=O)O.C7(CNCCNCC8=CC=CC=C8)=CC=CC=C7.O.O.O.O

[1]J A Yurchenco, et al. Substituted Penicillin Amides. Duration of Antibacterial Activity (Depot Effect) in Experimental Infections in Mice. Chemotherapy . 1972;17 (6) :405-15.|[2]Bowen AC, et al. Short-course oral co-trimoxazole versus intramuscular benzathine benzylpenicillin for impetigo in a highly endemic region: an open-label, randomised, controlled, non-inferiority trial. Lancet. 2014 Dec 13;384 (9960) :2132-40.