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Penicillin G Potassium Salt, USP Grade

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Description

Penicillin G is a β-lactam antibiotic produced by the
Penicillium fungus. It has shown efficacy against a variety of Streptococcus species as well as non-penicillinase producing Staphylococcus species. The potassium salt is useful in studying Staphylococcus murosomes and Streptococcus mutans. This product has been tested against both sensitive and resistant cells.

Penicillins are a type of β-lactam antibiotic consisting of a four-membered β-lactam ring bound to a five-membered thiazolidine ring. This two-ring system causes distortion of the β-lactam amide bond, resulting in decreased resonance stabilization and increased reactivity. β-lactams inhibit the formation of peptidoglycan cross-links within bacterial cell walls by targeting penicillin-binding proteins or PBPs. Consequently, the bacterial cell wall becomes weak and cytolysis occurs. Resistance to β-lactam antibiotics occurs in the presence of cells containing plasmid encoded extended spectrum β-lactamases or ESBLs.

Antibiotics are often used in clinical in vitro tests known as antimicrobial susceptibility tests or ASTs to determine their efficacy against certain bacterial species. They are tested against gram-negative and gram-positive bacteria using panels, discs, and MIC strips by medical microbiologists. ASTs decrease the risk of using an antibiotic against bacteria exhibiting resistance to it, and the results are used in clinical settings to determine which antibiotic(s) to prescribe for various infections.

Product Specifications:
Penicillin G Potassium Salt

Benzylpenicillin

USP GRADE

Formula: C
16H17KN2O4S

M.W.: 372.48 g/mol

Storage/Handling: Store desiccated at -20°C.

PubChem Chemical ID 23664709

Catalog ID P-303
CAS # 113-98-4
MW 372.48 g/mol
Grade USP GRADE
Storage/Handling Store desiccated at -20°C.
P Protocol
O Other
C Certificate of Analysis
S Safety Data Sheet

Additional information

CatalogID

P-303-1, P-303-100, P-303-50