CAS Registry Number

CAS 113-98-4 — Penicillin G potassium salt (Benzylpenicillin potassium salt)

Penicillin G potassium salt is a beta-lactam antibiotic derived from *Penicillium* fungi, widely used to treat bacterial infections in humans and animals by inhibiting cell wall synthesis. It is a potassium salt of benzylpenicillin, offering improved solubility and stability compared to the free acid form. This chemical has a CAS number of 113-98-4, with the molecular formula C16H17KN2O4S and a molecular weight of 372.48 g/mol. It should be stored at ambient conditions and handled with caution, as it carries a **Danger** signal word due to its potential hazards. Molekula supplies Penicillin G potassium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: Penicillin G potassium salt for cell culture