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AZ191

Alias: AZ191; AZ-191; AZ 191
Cat No.:V1954 Purity: ≥98%
AZ191 is a potent and selective DYRK1B (Dual-specificity tyrosine phosphorylation-regulated kinase) inhibitor with IC50 of 17 nM in a cell-free assay, about 5- and 110-fold selectivity over DYRK1A and DYRK2, respectively.
AZ191
AZ191 Chemical Structure CAS No.: 1594092-37-1
Product category: DYRK
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

AZ191 is a potent and selective DYRK1B (Dual-specificity tyrosine phosphorylation-regulated kinase) inhibitor with IC50 of 17 nM in a cell-free assay, about 5- and 110-fold selectivity over DYRK1A and DYRK2, respectively. Tyrosine kinase autophosphorylation is unaffected by AZ191, which specifically inhibits DYRK1B serine/threonine kinase activity. Moreover, AZ191 inhibits CCND1 phosphorylation in HEK-293 cells with significantly more potency against DYRK1B than DYRK1A. AZ191 accelerates cell-cycle progression in HD1B cells by potently suppressing the levels of the cell-cycle regulators, p21Cip1 and p27Kip1.

Biological Activity I Assay Protocols (From Reference)
Targets
DYRK1B (IC50 = 17 nM); DYRK1A (IC50 = 88 nM)
ln Vitro

AZ191 blocks DYRK1B serine/threonine kinase activity specifically; tyrosine kinase autophosphorylation is unaffected. Azzanol also inhibits CCND1 phosphorylation in HEK-293 cells, with much greater potency against DYRK1B than against DYRK1A. The levels of the cell-cycle regulators, p21Cip1 and p27Kip1, are significantly inhibited by AZ191 in HD1B cells, which also promotes cell expansion.

ln Vivo

Cell Assay
AZ191 at 1uM was unable to selectively inhibit DYRK1B serine/threonine kinase activity or inhibit DYRK1B autophospho-Tyr273 in HEK-293 cells. At doses as low as 30–100 nM, AZ191 inhibited phosphorylation of CCND1 with greater potency for DYRK1B over DYRK1A in HEK-293 cells co-expressing CCND1 with either DYRK1A or DYRK1B. With approximately 100-fold selectivity over DYRK2 and 5–10-fold selectivity over DYRK1A, AZ191 is a novel inhibitor that selectively targets DYRK1B. To identify DYRK1B substrates and functions, AZ191 will be a helpful probe.
Animal Protocol


References

[1]. A novel DYRK1B inhibitor AZ191 demonstrates that DYRK1B acts independently of GSK3β to phosphorylate cyclin D1 at Thr(286), not Thr(288). Biochem J. 2014 Jan 1;457(1):43-56.

[2]. Targeting DYRK1B suppresses the proliferation and migration of liposarcoma cells. Oncotarget. 2017 Nov 28;9(17):13154-13166.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C24H27N7O
Molecular Weight
429.52
Exact Mass
429.228
Elemental Analysis
C, 67.11; H, 6.34; N, 22.83; O, 3.72
CAS #
1594092-37-1
Related CAS #
1594092-37-1
PubChem CID
72716071
Appearance
Brown solid powder
LogP
3.61
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
7
Rotatable Bond Count
5
Heavy Atom Count
32
Complexity
601
Defined Atom Stereocenter Count
0
SMILES
O(C([H])([H])[H])C1=C(C([H])=C([H])C(=C1[H])N1C([H])([H])C([H])([H])N(C([H])([H])[H])C([H])([H])C1([H])[H])N([H])C1=NC([H])=C([H])C(C2=C([H])N(C([H])([H])[H])C3C([H])=NC([H])=C([H])C2=3)=N1
InChi Key
ZYVXTMKTGDARKR-UHFFFAOYSA-N
InChi Code
InChI=1S/C24H27N7O/c1-29-10-12-31(13-11-29)17-4-5-21(23(14-17)32-3)28-24-26-9-7-20(27-24)19-16-30(2)22-15-25-8-6-18(19)22/h4-9,14-16H,10-13H2,1-3H3,(H,26,27,28)
Chemical Name
N-[2-methoxy-4-(4-methylpiperazin-1-yl)phenyl]-4-(1-methylpyrrolo[2,3-c]pyridin-3-yl)pyrimidin-2-amine
Synonyms
AZ191; AZ-191; AZ 191
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: ~86 mg/mL (~200.2 mM)
Water: <1 mg/mL
Ethanol: <1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (5.82 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: 2.5 mg/mL (5.82 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.3282 mL 11.6409 mL 23.2818 mL
5 mM 0.4656 mL 2.3282 mL 4.6564 mL
10 mM 0.2328 mL 1.1641 mL 2.3282 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or 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.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Biological Data
  • Inhibition of DYRK1B by kinase inhibitor AZ191 or RNAi blocks proliferation in liposarcoma cell lines. Oncotarget . 2017 Nov 28;9(17):13154-13166.
  • Inhibition of DYRK1B by kinase inhibitor AZ191 or RNAi impairs motility in liposarcoma cell lines. Oncotarget . 2017 Nov 28;9(17):13154-13166.
  • Inhibition of DYRK1B by kinase inhibitor AZ191 or siRNA transfection induces cell apoptosis in liposarcoma cell lines. Oncotarget . 2017 Nov 28;9(17):13154-13166.
  • Co-incubation of different concentrations of AZ191 with increasing concentrations of doxorubicin increased anti-cancer effects in SW872 and SW982 cell lines as determined by the MTT assay. Oncotarget . 2017 Nov 28;9(17):13154-13166.
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