Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

SML2971

Sigma-Aldrich

K03861

≥98% (HPLC)

Synonym(s):

1-[4-(2-Aminopyrimidin-4-yloxy)phenyl]-3-[4-[(4-methylpiperazin-1-yl)methyl]-3-trifluoromethylphenyl]urea, AUZ 454, AUZ-454, AUZ454, CCG 269702, CCG-269702, CCG269702, K 03861, K-03861, N-[4-[(2-Amino-4-pyrimidinyl)oxy]phenyl]-N′-[4-[(4-methyl-1-piperazinyl)methyl]-3-(trifluoromethyl)phenyl]urea

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C24H26F3N7O2
CAS Number:
853299-07-7
Molecular Weight:
501.50
MDL number:
MFCD19443769
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

−20°C

InChI

1S/C24H26F3N7O2/c1-33-10-12-34(13-11-33)15-16-2-3-18(14-20(16)24(25,26)27)31-23(35)30-17-4-6-19(7-5-17)36-21-8-9-29-22(28)32-21/h2-9,14H,10-13,15H2,1H3,(H2,28,29,32)(H2,30,31,35)

InChI key

PWDLXPJQFNVTNL-UHFFFAOYSA-N

Biochem/physiol Actions

K03861 is an ATP site-binding, cyclin-competitive, type II CDK2 inhibitor that selectively targets and locks the kinase in its inactive DFG-out conformation (CDK2 Kd = 50 nM, DFG-out stabilizing CDK2-C118L/A144C mutant Kd = 9.7 nM without vs. 134.1 nM with bound cycB; CDK2-C118L/A144C-cycA IC50 = 0.8 μM), rendering it incompatible for cyclin bining. K03861 selectively inhibits CDK2-C118L/A144C over CycA-bound wt CDK2 by in vitro kinase assay (IC50 = 0.8 vs. >10 μM) and inhibits the proliferation of immortalized multipotent otic progenitor (iMOP) murine cell line (by 81% and 92%, resepectively, at 0.1 and 1.0 μM).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Manman Wang et al.
Cell & bioscience, 10, 57-57 (2020-04-24)
Forced polyploidization is an effective strategy for acute megakaryoblastic leukemia (AMKL) therapy and factors controlling polyploidization are potential targets for drug development. Although bone morphology protein 2-inducible kinase (BMP2K) has been implied to be a potential target for fasudil, a
Leila T Alexander et al.
ACS chemical biology, 10(9), 2116-2125 (2015-07-15)
Kinases can switch between active and inactive conformations of the ATP/Mg(2+) binding motif DFG, which has been explored for the development of type I or type II inhibitors. However, factors modulating DFG conformations remain poorly understood. We chose CDK2 as
Atsushi Okuma et al.
Nature communications, 8(1), 2050-2050 (2017-12-14)
p16Ink4a and p21Cip1/Waf1 act as tumour suppressors through induction of cellular senescence. However, senescence-independent roles of these CDK inhibitors are not well understood. Here, we report an unexpected function of p16Ink4 and p21Cip1/Waf1, namely, tumour promotion through chemotaxis. In monocytic
Zhichao Song et al.
Stem cell reports, 9(5), 1516-1529 (2017-10-17)
Loss of spiral ganglion neurons (SGNs) significantly contributes to hearing loss. Otic progenitor cell transplantation is a potential strategy to replace lost SGNs. Understanding how key transcription factors promote SGN differentiation in otic progenitors accelerates efforts for replacement therapies. A
Zhichao Song et al.
Frontiers in cell and developmental biology, 7, 87-87 (2019-06-14)
Stem cell replacement therapy is a potential method for repopulating lost spiral ganglion neurons (SGNs) in the inner ear. Efficacy of cell replacement relies on proper differentiation. Defining the dynamic expression of different transcription factors essential for neuronal differentiation allows
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service