AZ191

Synonym(s):[2-Methoxy-4-(4-methyl-piperazin-1-yl)-phenyl]-[4-(1-methyl-1H-pyrrolo[2,3-c]pyridin-3-yl)-pyrimidin-2-yl]-amine

CAS NO.：1594092-37-1
Empirical Formula: C24H27N7O
Molecular Weight: 429.52
MDL number: MFCD28015098
SAFETY DATA SHEET (SDS)
Update Date: 2026-04-21 10:31:43

What is AZ191?

The Uses of AZ191

AZ191 is a potent and selective DYRK1B inhibitor (1).

Enzyme inhibitor

This potent and selective DYRK inhibitor (FW = 429.53 g/mol), also systematically named N-(2-methoxy-4-(4-methylpiperazin-1-yl)phenyl)-4- (1-methyl-1H-pyrrolo[2,3-c]pyridin-3-yl)pyrimidin-2-amine, selectively targets DYRK1B, a Dual specificity tyrosine-phosphorylation-regulated kinase, with an IC50 value of 17 nM, or about 5x and 110x higher affinity than for DYRK1A and DYRK2. AZ191 is effective both in vitro and in cells. DYRK1B has also been proposed to promote the turnover of Cyclin D1, a key regulator of mammalian G1-S-phase transitions. Cyclin D1 is phosphorylated on Thr-286 by GSK3β (or glycogen synthase kinase 3β), thereby promoting its degradation.

Storage

Store at -20°C

Properties of AZ191

Boiling point:	705.3±70.0 °C(Predicted)
Density	1.29±0.1 g/cm3(Predicted)
storage temp.	Keep in dark place,Sealed in dry,Store in freezer, under -20°C
solubility	DMSO: soluble10mg/mL, clear
pka	7.76±0.42(Predicted)
form	powder
color	, white to yellow to light brown

Safety information for AZ191

Signal word	Danger
Pictogram(s)	Skull and Crossbones Acute Toxicity GHS06
GHS Hazard Statements	H227:Flammable liquids H301:Acute toxicity,oral
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P370+P378:In case of fire: Use … for extinction. P405:Store locked up. P403+P235:Store in a well-ventilated place. Keep cool.