ARN-3236

Alias: ARN3236; ARN 3236; ARN-3236.

Cat No.:V3543 Purity: ≥98%

COA Product Data Instructions for use SDS

ARN-3236 (ARN3236) is a novel, potent, oral bioavailable and selective inhibitor ofsalt-inducible kinase 2 (SIK2) with anticancer activity.

ARN-3236 Chemical Structure CAS No.: 1613710-01-2
Product category: SIK

This product is for research use only, not for human use. We do not sell to patients.

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Citations by Top Journals: Nature, Cell, Science, etc.

Top Publications Citing lnvivochem Products

Nature 2021, 597(7874):119-125.

Cell 2020,183:1202-1218.e25.

Science Adv 2022: 8, eabm9427.

Nature 597, 119–125 (2021)

Cell Stem Cell 2020,26(6):845-861.e12.

Science Trans Med 2023,15(701):eadd7872.

STTT 2023,8(1):91.

Cell Reports 2023,42(4):112313

Science Trans Med 2023, 15: eadd7872.

Cancer Cell 2021,39(4):529-547.e7.

Cancer Discov 2022,12(4):1106-1127.

Immunity 2023,56(3):620-634.e11.

J Am Chem Soc 2022,144:21831-21836.

Cell 2020,183:1202-1218.e25.

Science Adv 2022:8,eabm9427.

Nature 2021,597(7874):119-125.

Cell 2020,183:1202-1218.e25.

PNAS Nexus 2022,1(3):pgac063.

ACS Nano 2023,17(10):9110-9125.

Biomaterial 2023 Sep16:302:122333.

Purity & Quality Control Documentation

Current batch：

Purity: ≥98%

COA

MSDS

Instructions

Product Description
Bioactivity & Protocols
Physicochemical Properties
Solubility Data
Calculators
Biological Data

Product Description

ARN-3236 (ARN3236) is a novel, potent, oral bioavailable and selective inhibitor of salt-inducible kinase 2 (SIK2) with anticancer activity. It inhibits SIK2 with IC50s of<1 nM, 21.63 nM and 6.63 nM for SIK2, SIK1 and SIK3, respectively. SIK2 is overexpressed in approximately 30% of high-grade serous ovarian cancers. ARN-3236 inhibited the growth of 10 ovarian cancer cell lines at an IC50 of 0.8 to 2.6 μmol/L, where the IC50 of ARN-3236 was inversely correlated with endogenous SIK2 expression (Pearson r = -0.642, P = 0.03). ARN-3236 enhanced sensitivity to paclitaxel in 8 of 10 cell lines, as well as in SKOv3ip (P = 0.028) and OVCAR8 xenografts. In at least three cell lines, a synergistic interaction was observed. ARN-3236 uncoupled the centrosome from the nucleus in interphase, blocked centrosome separation in mitosis, caused prometaphase arrest, and induced apoptotic cell death and tetraploidy. ARN-3236 also inhibited AKT phosphorylation and attenuated survivin expression. ARN-3236 is the first orally available inhibitor of SIK2 to be evaluated against ovarian cancer in preclinical models and shows promise in inhibiting ovarian cancer growth and enhancing paclitaxel chemosensitivity.

Biological Activity I Assay Protocols (From Reference)

ln Vitro	At IC50 <1 nM, ARN-3236 suppresses SIK2 activity[2]. Ovarian cancer cell proliferation is inhibited and NSC 125973 sensitivity is increased by ARN-3236 [2].
ln Vivo	ARN-3236 (60 mg/kg, oral) makes ovarian cancer more susceptible to NSC 125973 in vivo [2].
Cell Assay	Cell viability assay [2] Cell Types: HEY and A2780 human ovarian cancer cell lines. Tested Concentrations: 0-10μM. Incubation Duration: 24 hrs (hours). Experimental Results: Inhibits SIK2 activity, IC50 <1 nM.
Animal Protocol	Animal/Disease Models: SKOv3ip mice and OVCAR8 mice [2]. Doses: 60 mg/kg. Route of Administration: Orally one time/day for 3 weeks (SKOv3ip-carrying mice) and 4 weeks (OVCAR8-carrying mice). Experimental Results: Ovarian cancer is sensitive to NSC 125973.
References	[1]. SIK inhibition in human myeloid cells modulates TLR and IL-1R signaling and induces an anti-inflammatory phenotype. J Leukoc Biol. 2016 May;99(5):711-21. [2]. A Novel Compound ARN-3236 Inhibits Salt-Inducible Kinase 2 and Sensitizes Ovarian Cancer Cell Lines and Xenografts. Clin Cancer Res. 2017 Apr 15;23(8):1945-1954.

These protocols are for reference only. InvivoChem does not independently validate these methods.

Physicochemical Properties

Molecular Formula	C19H16N2O2S
Molecular Weight	336.407543182373
Exact Mass	336.093
CAS #	1613710-01-2
Related CAS #	1613710-01-2 (HCl)
PubChem CID	74766530
Appearance	White to off-white solid powder
LogP	4.2
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	4
Heavy Atom Count	24
Complexity	424
Defined Atom Stereocenter Count	0
SMILES	S1C=CC(=C1)C1C=CN=C2C=1C(=CN2)C1C=CC(=CC=1OC)OC
InChi Key	WEHOIIGXTMKVRG-UHFFFAOYSA-N
InChi Code	InChI=1S/C19H16N2O2S/c1-22-13-3-4-15(17(9-13)23-2)16-10-21-19-18(16)14(5-7-20-19)12-6-8-24-11-12/h3-11H,1-2H3,(H,20,21)
Chemical Name	3-(2,4-Dimethoxyphenyl)-4-(3-thienyl)-1H-pyrrolo[2,3-b]pyridine
Synonyms	ARN3236; ARN 3236; ARN-3236.
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 : ~50 mg/mL (~148.63 mM)
Solubility (In Vivo)	Solubility in Formulation 1: ≥ 2.17 mg/mL (6.45 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 21.7 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: ≥ 2.17 mg/mL (6.45 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in 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 21.7 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. View More Solubility in Formulation 3: ≥ 2.17 mg/mL (6.45 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (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 21.7 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly. (Please use freshly prepared in vivo formulations for optimal results.)

Solubility (In Vitro)

DMSO : ~50 mg/mL (~148.63 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.17 mg/mL (6.45 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 21.7 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: ≥ 2.17 mg/mL (6.45 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in 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 21.7 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.

View More

Solubility in Formulation 3: ≥ 2.17 mg/mL (6.45 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (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 21.7 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

(Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.9726 mL	14.8628 mL	29.7256 mL
	5 mM	0.5945 mL	2.9726 mL	5.9451 mL
	10 mM	0.2973 mL	1.4863 mL	2.9726 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

Mass

Concentration

Volume

Molecular Weight*

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

Calculate the Mass of a compound required to prepare a solution of known volume and concentration
Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume

See Example

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.

Concentration (Start)

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Concentration (End)

Volume (End)

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

Molecular formula

Total molecular weight

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:

To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.

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.

Volume (to add to vial)

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Desired Reconstitution Concentration

Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
Click the “Calculate” button
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)

Dosage mg/kg

Average weight of animals g

Dosing volume per animal μL

Number of animals

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.)

% DMSO

% Tween 80

% ddH₂O

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.

Note： (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

SIK2 is overexpressed in 30% of serous ovarian cancers.Clin Cancer Res.2017 Apr 15;23(8):1945-1954.
ARN-3236 uncouples the centrosome from the nucleus and inhibits centrosome separation.Clin Cancer Res.2017 Apr 15;23(8):1945-1954.
ARN-3236 increases paclitaxel sensitivity in ovarian cancer cells in vitro and in vivo.Clin Cancer Res.2017 Apr 15;23(8):1945-1954.
ARN-3236 inhibits SIK2 kinase activity and ovarian cancer cell growth.Clin Cancer Res.2017 Apr 15;23(8):1945-1954.
ARN-3236 induces cell cycle arrest, apoptosis and tetraploidy.Clin Cancer Res.2017 Apr 15;23(8):1945-1954.
ARN-3236 attenuates the AKT/survivin pathway.Clin Cancer Res.2017 Apr 15;23(8):1945-1954.