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SML2436

Sigma-Aldrich

BAY-958 hydrochloride

≥98% (HPLC)

Synonym(s):

(3-((4-(4-Fluoro-2-methoxyphenyl)-1,3,5-triazin-2-yl)amino)phenyl)methanesulfonamide hydrochloride, 3-[[4-(4-Fluoro-2-methoxyphenyl)-1,3,5-triazin-2-yl]amino]benzenemethanesulfonamide hydrochloride, BAY 958 HCl, BAY958 HCl, LDC 526 HCl, LDC526 HCl

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About This Item

Empirical Formula (Hill Notation):
C17H16FN5O3S · HCl
CAS Number:
1424871-27-1
Molecular Weight:
425.86
UNSPSC Code:
12352200
NACRES:
NA.77

assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

2-8°C

SMILES string

FC1=CC=C(C2=NC(NC3=CC(CS(=O)(N)=O)=CC=C3)=NC=N2)C(OC)=C1.Cl

Biochem/physiol Actions

BAY-958 (LDC526) is an orally active, ATP site-targeting, potent and selective PTEFb/CDK9 inhibitor (hCDK9-CycT1 IC50 = 5-11 nM; [ATP] = 10 μM) with 52- to >2000-fold selectivity over CDK1-7 with antiproliferative activity in cancer cultures (IC50 = 0.28 μM/96h/MOLM-13, 1 μM/96h/HeLa, 0.55 μM/48h/MEC-1, 0.28 μM/48h/CCL patient PBMCs). When administered orally in mice, BAY-958 significantly suppresses MOLM-13 acute myeloid leukemia (AML) tumor growth in mice (30/40 mg/kg/day p.o.; HCl salt) and exhibits in vivo efficacy in two murine chronic lymphocytic leukemia (CLL) models (50 & 70 mg/kg/day p.o.; free base).

Storage Class

11 - Combustible Solids

wgk_germany

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’.

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Ulrich Lücking et al.
ChemMedChem, 12(21), 1776-1793 (2017-09-30)
Selective inhibition of exclusively transcription-regulating PTEFb/CDK9 is a promising new approach in cancer therapy. Starting from lead compound BAY-958, lead optimization efforts strictly focusing on kinase selectivity, physicochemical and DMPK properties finally led to the identification of the orally available
Joachim R Göthert et al.
Oncotarget, 9(41), 26353-26369 (2018-06-15)
Onset of progression even during therapy with novel drugs remains an issue in chronic lymphocytic leukemia (CLL). Thus, there is ongoing demand for novel agents. Approaches targeting cyclin-dependent kinases (CDK) have reached the clinical trial stage. CDK9 mediating RNA transcriptional

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