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USP

Penicillin G potassium

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Penicillin G potassium salt, Benzylpenicillin potassium salt

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About This Item

Empirical Formula (Hill Notation):
C16H17KN2O4S
CAS Number:
Molecular Weight:
372.48
Beilstein:
3832841
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

penicillin & derivatives

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

[K+].[H][C@]12SC(C)(C)[C@@H](N1C(=O)[C@H]2NC(=O)Cc3ccccc3)C([O-])=O

InChI

1S/C16H18N2O4S.K/c1-16(2)12(15(21)22)18-13(20)11(14(18)23-16)17-10(19)8-9-6-4-3-5-7-9;/h3-7,11-12,14H,8H2,1-2H3,(H,17,19)(H,21,22);/q;+1/p-1/t11-,12+,14-;/m1./s1

InChI key

IYNDLOXRXUOGIU-LQDWTQKMSA-M

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General description

Penicillin G is a β-lactam antibiotic having antimicrobial action against Gram-positive and Gram-negative bacteria. Penicillin G potassium USP reference standard is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Penicillin G potassium USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Penicillamine
  • Penicillin G Benzathine
  • Penicillin G Benzathine and Penicillin G Procaine Injectable Suspension
  • Penicillin G Benzathine Injectable Suspension
  • Penicillin G Potassium
  • Penicillin G Potassium for Injection
  • Penicillin G Potassium for Oral Solution

Biochem/physiol Actions

Mode of Action: Penicillin G acts by inhibiting cell wall synthesis through binding to penicillin binding proteins (PBPs), inhibiting peptidoglycan chain cross-linking.

Antimicrobial spectrum: This product is active against gram-positive and gram-negative bacteria.

Other Notes

This product is part of the USP Biologics program.
Sales restrictions may apply.

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Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Penicillin G Potassium
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 41(3), 3436-3436 (2020)
Matthieu Picard et al.
Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology, 113(1), 75-81 (2014-05-27)
The absence of commercially available penicilloyl-polylysine (PPL) for most of the last decade severely hampered the practice of penicillin allergy evaluation because skin testing without PPL is reported to have a poor negative predictive value (NPV). To determine the safety
Chronic inflammatory demyelinating polyneuropathy associated with neurosyphilis.
Evangelia Kararizou et al.
The American journal of the medical sciences, 349(1), 90-91 (2014-12-04)
Nahid Pourreza et al.
Journal of AOAC International, 97(4), 1225-1229 (2014-08-26)
A cloud point extraction (CPE) method for determination of trace amounts of penicillin G by spectrophotometry based on its effect on the triiodide ion (I3(-)) has been developed. Penicillin G is converted to the corresponding penicilloic acid by carrying out

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