Catalog No. size PriceQuantity
M7081-2 2mg solid $152
M7081-10 10mg solid $611


MN58b is a selective choline kinase α (CHKα) inhibitor. MN58b is a novel anticancer drug that inhibits choline kinase, resulting in inhibition of phosphocholine synthesis. Inhibition of choline kinase by MN58b resulted in altered phospholipid metabolism both in cultured tumor cells and in vivo.

Product information

CAS Number: 203192-01-2

Molecular Weight: 640.49

Formula: C32H40Br2N4


MN58b bromide

MN 58b


Chemical Name: 1,1'-((butane-1,4-diylbis(4,1-phenylene))bis(methylene))bis(4-(dimethylamino)pyridin-1-ium) bromide

Smiles: [Br-].[Br-].CN(C)C1C=C[N+](CC2C=CC(CCCCC3C=CC(C[N+]4C=CC(=CC=4)N(C)C)=CC=3)=CC=2)=CC=1


InChi: InChI=1S/C32H40N4.2BrH/c1-33(2)31-17-21-35(22-18-31)25-29-13-9-27(10-14-29)7-5-6-8-28-11-15-30(16-12-28)26-36-23-19-32(20-24-36)34(3)4;;/h9-24H,5-8,25-26H2,1-4H3;2*1H/q+2;;/p-2

Technical Data

Appearance: Solid Power.

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

The IC50s of MN58b for parental and Gemcitabine-resistant Suit2 007 cells are 3.14 µM and 0.77 µM, respectively. MN58b (1-5 µM; 72 hours; SK-PC-1, Suit2 008, IMIM-PC2, and RWP-1 cells) has a marked effect on colony formation at 1 µM, and growth is completely abolished at 5 µM in all the cell lines. MN58b ((1-10 µM; 24-48 hours; SK-PC-1, Suit2 008, IMIM-PC2, and RWP-1 cells) induces apoptosis and this response correlates with CHKα expression.

In Vivo:

MN58b (4 mg/kg; intraperitoneal injection; once a day; for 5 days; MF-1 nude mice) treatment significantly decreases phosphomonoesters in both HT29 and MDA-MB-231 xenografts. Phosphocholine levels are found to correlate with choline kinase activities.


  1. Kumar M, Arlauckas SP, Saksena S, Verma G, Ittyerah R, Pickup S, Popov AV, Delikatny EJ, Poptani H. Magnetic resonance spectroscopy for detection of choline kinase inhibition in the treatment of brain tumors. Mol Cancer Ther. 2015 Apr;14(4):899-908. doi: 10.1158/1535-7163.MCT-14-0775. Epub 2015 Feb 5. PMID: 25657334; PMCID: PMC4394035.
  2. Guma M, Sanchez-Lopez E, Lodi A, Garcia-Carbonell R, Tiziani S, Karin M, Lacal JC, Firestein GS. Choline kinase inhibition in rheumatoid arthritis. Ann Rheum Dis. 2015 Jul;74(7):1399-407. doi: 10.1136/annrheumdis-2014-205696. Epub 2014 Oct 1. PMID: 25274633; PMCID: PMC4382461.
  3. Li Y, Kinting S, Höppner S, Forstner ME, Uhl O, Koletzko B, Griese M. Metabolic labelling of choline phospholipids probes ABCA3 transport in lamellar bodies. Biochim Biophys Acta Mol Cell Biol Lipids. 2019 Dec;1864(12):158516. doi: 10.1016/j.bbalip.2019.158516. Epub 2019 Aug 29. PMID: 31473345.

Products are for research use only. Not for human use.

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