CMK

Alias: 821794-90-5

Cat No.:V29201 Purity: ≥98%

COA Product Data Instructions for use SDS

CMK is an RSK2 kinase inhibitor (antagonist) with similar potency but lower chemical stability than FMK.

CMK Chemical Structure CAS No.: 821794-90-5
Product category: RSK

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

Size	Price	Stock	Qty
5mg
10mg
25mg
50mg
100mg
250mg
Other Sizes

ADD TO CART CHECKOUT BULK INQUIRY

1-708-310-1919 sales@invivochem.com

Other Forms of CMK:

Fmk
FMK-MEA

Official Supplier of:

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.

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

Product Description

CMK is an RSK2 kinase inhibitor (antagonist) with similar potency but lower chemical stability than FMK.

Biological Activity I Assay Protocols (From Reference)

ln Vitro	CMK inhibits Cdc5 (L158G) growth with an IC50 value of 36 nM, which is higher than the wild type Cdc5 IC50 of 30 μM. In the cdc5-as1 strain, CMK exhibits a concentration-dependent first cell cycle mitotic arrest with an IC50 of 1.1 μM. Anaphase I of the first cell cycle is arrested, and anaphase spindle migration is delayed as a result of CMK inhibition of Cdc5 (L158G)[1].
References	[1]. A coupled chemical-genetic and bioinformatic approach to Polo-like kinase pathway exploration. Chem Biol. 2007 Nov;14(11):1261-72.

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

Physicochemical Properties

Molecular Formula	C18H19CLN4O2
Molecular Weight	358.82206
Exact Mass	358.12
Elemental Analysis	C, 60.25; H, 5.34; Cl, 9.88; N, 15.61; O, 8.92
CAS #	821794-90-5
Related CAS #	FMK;821794-92-7;FMK-MEA;1414811-15-6
Appearance	Solid powder
SMILES	CC1=CC=C(C=C1)C2=C(N(C3=NC=NC(=C23)N)CCCO)C(=O)CCl
InChi Key	PELFTNQHGSITLB-UHFFFAOYSA-N
InChi Code	InChI=1S/C18H19ClN4O2/c1-11-3-5-12(6-4-11)14-15-17(20)21-10-22-18(15)23(7-2-8-24)16(14)13(25)9-19/h3-6,10,24H,2,7-9H2,1H3,(H2,20,21,22)
Chemical Name	1-[4-amino-7-(3-hydroxypropyl)-5-(4-methylphenyl)pyrrolo[2,3-d]pyrimidin-6-yl]-2-chloroethanone
Synonyms	821794-90-5
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 Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
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: ~150 mg/mL (~418.0 mM)
Solubility (In Vivo)	Solubility in Formulation 1: ≥ 2.5 mg/mL (6.97 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 (6.97 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 25.0 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: ~150 mg/mL (~418.0 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (6.97 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 (6.97 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 25.0 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	2.7869 mL	13.9346 mL	27.8691 mL
	5 mM	0.5574 mL	2.7869 mL	5.5738 mL
	10 mM	0.2787 mL	1.3935 mL	2.7869 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*

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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)

Volume (Start)

Concentration (End)

Volume (End)

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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

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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)

Mass (in vial)

Desired Reconstitution Concentration

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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

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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.

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

Analog-sensitive Cdc5 is inhibited by CMK. Chem Biol . 2007 Nov;14(11):1261-72.
CMK inhibition of Cdc5(L158G) leads to a first cell cycle anaphase arrest and delay in anaphase spindle migration. Chem Biol . 2007 Nov;14(11):1261-72.