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MedKoo CAT#: 561398

CAS#: 1820684-31-8

Description: M443 is a specific small molecule inhibitor of MRK. M443 strongly radiosensitizes UW228 medulloblastoma cells as well as UI226 patient-derived primary cells, whereas it does not affect the response to radiation of normal brain cells. M443 also inhibits radiation-induced activation of both p38 and Chk2, two proteins that act downstream of MRK and are involved in DNA damage-induced cell-cycle arrest.

Price and Availability

Size Price Shipping out time Quantity
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Pricing updated 2020-08-11. Prices are subject to change without notice.

M443 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 561398
Name: M443
CAS#: 1820684-31-8
Chemical Formula: C31H30F3N7O2
Exact Mass: 589.2413
Molecular Weight: 589.6232
Elemental Analysis: C, 63.15; H, 5.13; F, 9.67; N, 16.63; O, 5.43

Synonym: M443; M-443; M 443;

IUPAC/Chemical Name: 3-[4-(1-Acryloyl-piperidin-3-yl)-pyrimidin-2-ylamino]-4-methyl-N-[3-(4-methyl-imidazol-1-yl)-5-trifluoromethyl-phenyl]-benzamide


InChi Code: InChI=1S/C31H30F3N7O2/c1-4-28(42)40-11-5-6-22(17-40)26-9-10-35-30(38-26)39-27-12-21(8-7-19(27)2)29(43)37-24-13-23(31(32,33)34)14-25(15-24)41-16-20(3)36-18-41/h4,7-10,12-16,18,22H,1,5-6,11,17H2,2-3H3,(H,37,43)(H,35,38,39)

SMILES Code: O=C(NC1=CC(C(F)(F)F)=CC(N2C=C(C)N=C2)=C1)C3=CC=C(C)C(NC4=NC=CC(C5CN(C(C=C)=O)CCC5)=N4)=C3

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


1: Markowitz D, Powell C, Tran NL, Berens ME, Ryken TC, Vanan M, Rosen L, He M, Sun S, Symons M, Al-Abed Y, Ruggieri R. Pharmacological Inhibition of the Protein Kinase MRK/ZAK Radiosensitizes Medulloblastoma. Mol Cancer Ther. 2016 Aug;15(8):1799-808. doi: 10.1158/1535-7163.MCT-15-0849. Epub 2016 May 20. PubMed PMID: 27207779.