Catalog No.S1609 Synonyms: Tapazole, Thiamazole

Methimazole  Chemical Structure

Molecular Weight(MW): 114.17

Methimazole is an antithyroid medicine.

Size Price Stock Quantity  
In DMSO USD 130 In stock
USD 97 In stock
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Purity & Quality Control

Biological Activity

Description Methimazole is an antithyroid medicine.
flavin-containing monooxygenase [1]
(rat liver microsomes)


Solubility (25°C)

In vitro DMSO 23 mg/mL (201.45 mM)
Water 23 mg/mL (201.45 mM)
Ethanol 23 mg/mL (201.45 mM)

* 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 114.17


CAS No. 60-56-0
Storage powder
Synonyms Tapazole, Thiamazole

Bio Calculators

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Molarity Calculator

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

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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

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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 )

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

The Serial Dilution Calculator Equation

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  • Computed Result

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    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
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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 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 Conditions Sponsor/Collaborators Start Date Phases
NCT02654041 Suspended Glioblastoma Multiforme (GBM) Musli Thyropeutics Ltd.|Tel-Aviv Sourasky Medical Center March 2016 Phase 2
NCT02727738 Completed Graves Disease University of Pisa January 2014 --
NCT01849861 Unknown status Healthy Universidade Federal do Rio de Janeiro|Conselho Nacional de Desenvolvimento Científico e Tecnológico September 2011 Phase 4
NCT02376088 Completed Graves Disease Weikai Hou|Qilu Hospital June 2011 --
NCT01560299 Completed Graves Disease Mashhad University of Medical Sciences February 2010 --
NCT01893450 Terminated Graves Ophthalmopathy Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran June 2008 --

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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