We are open as normal during COVID-19 pandemic. Order online, same day shipping out from North Carolina, USA

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 533111


Description: VN339 is a Novel probe for CLK kinases, targeting CLK1, CLK2, CLK4, DYRK1A, DYRK1B, DYRK2.

Price and Availability

Size Price Shipping out time Quantity
Inquire bulk and customized quantity

Pricing updated 2020-09-27. Prices are subject to change without notice.

VN339 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 to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 533111
Name: VN339
Chemical Formula: C22H16N4O
Exact Mass: 352.1324
Molecular Weight: 352.397
Elemental Analysis: C, 74.98; H, 4.58; N, 15.90; O, 4.54

Synonym: VN339; VN-339; VN 339

IUPAC/Chemical Name: 1-Methyl-4-(9-(3-(pyridin-4-yl)-phenyl)-7-oxa-2-aza-bicyclo[4.3.0]nona-1,3,5,8-tetraen-3-yl)-1H-pyrazole


InChi Code: InChI=1S/C22H16N4O/c1-26-13-18(12-24-26)20-5-6-21-22(25-20)19(14-27-21)17-4-2-3-16(11-17)15-7-9-23-10-8-15/h2-14H,1H3

SMILES Code: CN1N=CC(C2=CC=C3OC=C(C4=CC=CC(C5=CC=NC=C5)=C4)C3=N2)=C1

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:
>3 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: