Toggle Nav


Catalog No.
DYRK1B inhibitor,potent and selective
Grouped product items
SizePriceStock Qty
10mM (in 1mL DMSO)
In stock
In stock
In stock

Tel: +1-832-696-8203

Email: [email protected]

Worldwide Distributors


AZ191 is a potent and selective DYRK1B inhibitor with IC50 value of 17 nM [1].
DYRK1B (dual-specificity tyrosine phosphorylation-regulated kinase 1B) is particularly expressed in the testis and muscle where it plays an important role in myoblast differentiation. DYRK1B is overexpressed in certain cancers suggesting that it may be an oncogene [1].
In HEK-293 cells, AZ191 at 1uM could’t inhibit  DYRK1B autophospho-Tyr273 and selectively inhibited DYRK1B serine/threonine kinase activity. In HEK-293 cells co-expressing CCND1 with either DYRK1A or DYRK1B, AZ191 inhibited phosphorylation of CCND1 with greater potency for DYRK1B over DYRK1A at doses as low as 30–100 nM. AZ191 is a novel DYRK1B-selective inhibitor with ∼100-fold selectivity over DYRK2 and 5–10-fold selectivity over DYRK1A. AZ191 will be used as a useful probe for defining DYRK1B functions and DYRK1B substrates [1].
[1]. Ashford AL, Oxley D, Kettle J, et al. A novel DYRK1B inhibitor AZ191 demonstrates that DYRK1B acts independently of GSK3β to phosphorylate cyclin D1 at Thr(286), not Thr(288). Biochem J, 2014, 457(1): 43-56.

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
Cas No.1594092-37-1
Solubility≥13.15mg/mL in DMSO
Chemical NameN-[2-methoxy-4-(4-methylpiperazin-1-yl)phenyl]-4-(1-methylpyrrolo[2,3-c]pyridin-3-yl)pyrimidin-2-amine
SDFDownload SDF
Canonical SMILESCN1CCN(CC1)C2=CC(=C(C=C2)NC3=NC=CC(=N3)C4=CN(C5=C4C=CN=C5)C)OC
Shipping ConditionEvaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.

Quality Control

Chemical structure