ZM 39923 HCl
Molecular Weight(MW): 367.91
ZM 39923 HCl is an JAK1/3 inhibitor with pIC50 of 4.4/7.1, almost no activity to JAK2 and modestly potent to EGFR; also found to be sensitive to transglutaminase.
Purity & Quality Control
Choose Selective JAK Inhibitors
|Description||ZM 39923 HCl is an JAK1/3 inhibitor with pIC50 of 4.4/7.1, almost no activity to JAK2 and modestly potent to EGFR; also found to be sensitive to transglutaminase.|
|Features||ZM39923 acts as a prodrug.|
ZM39923 breaks down to form the JAK3 inhibitor ZM449829 which exhibit similar IC50 values. ZM39923 decomposes in neutral buffer to afford potent inhibition of the Janus kinase 3, and could be used as a standard Jak3 inhibitor in assays where breakdown could occur.  ZM39923 is reduced by 300-fold in the presence of DTT (10 mM) in inhibiting TGM2. ZM39923 is reversible inhibitors when TGM2 is incubated with inhibitors in the absence of Ca2+. ZM39923 shows significant inhibition of crosslinking activity with IC50 of 25 nM in the absence of DTT and IC50 of 10 μM in the presence of DTT. ZM39923 prevents early death in a Drosophila Melanogaster model of a polyQ repeat disorder called Machado-Joseph Disease.  ZM39923 inhibits the generation of AICD-FLAG and both Aβ40 and Aβ42 by purified γ-secretase in a concentration-dependent fashion with an approximate IC50 of 20 μM. ZM39923 decreases photoaffinity-labeled PS1-CTF in the presense of γ-secretase. 
|In vitro||DMSO||30 mg/mL (81.54 mM)|
|Ethanol||8 mg/mL (21.74 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.
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)
*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).
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 )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
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.
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.
Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.