Penicillin G Sodium

For research use only.

Catalog No.S4160 Synonyms: Benzylpenicillin Sodium

1 publication

Penicillin G Sodium Chemical Structure

CAS No. 69-57-8

Penicillin G Sodium (Benzylpenicillin) is a β-lactam antibiotic produced by Penicillin spp.

Selleck's Penicillin G Sodium has been cited by 1 publication

Purity & Quality Control

Choose Selective Antibiotics for Mammalian Cell Culture Inhibitors

Biological Activity

Description Penicillin G Sodium (Benzylpenicillin) is a β-lactam antibiotic produced by Penicillin spp.
In vitro

Benzylpenicillin is also commonly known as penicillin G. Benzylpenicillin exhibits activity mainly against Gram-positive organisms. Some Gram-negative organisms such as Neisseria gonorrhoeae and Neisseria meningitidis are also reported to be susceptible to Penicillin G.



Solubility (25°C)

In vitro DMSO 71 mg/mL (199.23 mM)
Water 71 mg/mL (199.23 mM)
Ethanol Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 356.37


CAS No. 69-57-8
Storage powder
in solvent
Synonyms Benzylpenicillin Sodium
Smiles CC1(C(N2C(S1)C(C2=O)NC(=O)CC3=CC=CC=C3)C(=O)[O-])C.[Na+]

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
Dosage mg/kg Average weight of animals g Dosing volume per animal ul Number of animals
Step 2: Enter the in vivo formulation ()
% DMSO % % Tween 80 % ddH2O

Bio Calculators

Molarity Calculator

Molarity Calculator

Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:

Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)

  • Mass
    Molecular Weight

*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and SDS / COA (available on product pages).

Dilution Calculator

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration (start) x Volume (start) = Concentration (final) x Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

  • C1

* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / COA (available online).

The Serial Dilution Calculator Equation

  • Serial Dilutions

  • Computed Result

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
Molecular Weight Calculator

Molecular Weight Calculator

Enter the chemical formula of a compound to calculate its molar mass and elemental composition:

Total Molecular Weight: g/mol

Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:

To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.

Definitions of molecular mass, molecular weight, molar mass and molar weight:

Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT04647331 Recruiting -- Infective Endocarditis Uppsala University June 1 2021 --
NCT03612557 Completed Drug: penicillin G benzathine Healthy Pfizer August 20 2018 Phase 1
NCT00789217 Completed Procedure: Immediate skin test Penicillin Allergy Chulalongkorn University|Mahidol University December 2008 Not Applicable
NCT01944358 Completed -- Serologic Response of Syphilis|Early Syphilis|High Risk Behavior National Taiwan University Hospital|Far Eastern Memorial Hospital|Taichung Veterans General Hospital|National Cheng-Kung University Hospital|Chang Gung Memorial Hospital|Chi Mei Medical Hospital|Kaohsiung Medical University Chung-Ho Memorial Hospital|E-DA Hospital January 2007 --

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID