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Catalog No. T6436   CAS 53994-73-3
Synonyms: Panoral, Kefral, Cefaclorum

Cefaclor (Panoral) is a cephalosporin antibiotic.

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Cefaclor Chemical Structure
Cefaclor, CAS 53994-73-3
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Biological Description
Chemical Properties
Storage & Solubility Information
Description Cefaclor (Panoral) is a cephalosporin antibiotic.
Synonyms Panoral, Kefral, Cefaclorum
Molecular Weight 367.81
Formula C15H14ClN3O4S
CAS No. 53994-73-3


Powder: -20°C for 3 years | In solvent: -80°C for 1 year

Solubility Information

DMSO: 18.5 mg/mL (50.30 mM), Sonication and heating are recommended.

TargetMolReferences and Literature

1. Tomić Z,et al.J Pharm Sci. 2016 Mar;105(3):1295-300. 2. Torumkuney D, et al.J Antimicrob Chemother. 2016 May;71 Suppl 1:i85-i91.

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Molarity Calculator allows you to calculate the

  • Mass of a compound required to prepare a solution of known volume and concentration
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An example of a molarity calculation using the molarity calculator
What is the mass of compound required to make a 10 mM stock solution in 10 ml of water given that the molecular weight of the compound is 197.13 g/mol?
Enter 197.13 into the Molecular Weight (MW) box
Enter 10 into the Concentration box and select the correct unit (millimolar)
Enter 10 into the Volume box and select the correct unit (milliliter)
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The answer of 19.713 mg appears in the Mass box


Calculator the dilution required to prepare a stock solution

Calculate the dilution required to prepare a stock solution
The dilution calculator is a useful tool which allows you to calculate how to dilute a stock solution of known concentration. Enter C1, C2 & V2 to calculate V1.

See Example

An example of a dilution calculation using the Tocris dilution calculator
What volume of a given 10 mM stock solution is required to make 20ml of a 50 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=50 μM, V2=20 ml and V1 is the unknown:
Enter 10 into the Concentration (start) box and select the correct unit (millimolar)
Enter 50 into the Concentration (final) box and select the correct unit (micromolar)
Enter 20 into the Volume (final) box and select the correct unit (milliliter)
Press calculate
The answer of 100 microliter (0.1 ml) appears in the Volume (start) box


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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 n 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.


Tech Support

Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc.


Cefaclor 53994-73-3 Microbiology/Virology Others Antibacterial Antibiotic Panoral skin infections pharyngitis well-absorbed oral bacterial bronchitis Bacterial Kefral Inhibitor respiratory tract infections bacteria Cefaclorum inhibit penicillin-binding protein 3 (PBP3) inhibitor