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

MedKoo CAT#: 406460

CAS#: 1469988-75-7

Description: QL47, also known as QL-XII-47, is a potent and selective BTK inhibitor, which covalently modifies Cys481. QL47 inhibits BTK kinase activity with an IC50 of 7 nM, inhibits autophosphorylation of BTK on Tyr223 in cells with an EC50 of 475 nM and inhibits phosphorylation of a downstream effector PLCγ2 (Tyr759) with an EC50 of 318 nM. In Ramos cells QL47 induces a G1 cell cycle arrest which is associated with pronounced degradation of BTK protein. QL47 inhibits the proliferation of B-cell lymphoma cancer cell lines at submicromolar concentrations.

Price and Availability




QL47 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 sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 406460
Name: QL47
CAS#: 1469988-75-7
Chemical Formula: C27H21N5O2
Exact Mass: 447.16952
Molecular Weight: 447.48794
Elemental Analysis: C, 72.47; H, 4.73; N, 15.65; O, 7.15

Synonym: QL47; QL 47; QL47. QL-XII-47

IUPAC/Chemical Name: 1-(1-acryloylindolin-6-yl)-9-(1-methyl-1H-pyrazol-4-yl)benzo[h][1,6]naphthyridin-2(1H)-one


InChi Code: InChI=1S/C27H21N5O2/c1-3-25(33)31-11-10-17-4-7-21(13-24(17)31)32-26(34)9-6-19-14-28-23-8-5-18(12-22(23)27(19)32)20-15-29-30(2)16-20/h3-9,12-16H,1,10-11H2,2H3

SMILES Code: O=C1N(C2=CC3=C(C=C2)CCN3C(C=C)=O)C4=C(C=NC5=CC=C(C6=CN(C)N=C6)C=C54)C=C1

Technical Data

white 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, not in water

Shelf Life:
>2 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).

Harmonized System Code:

Additional Information



1: Wu H, Wang W, Liu F, Weisberg EE, Tian B, Chen Y, Li B, Wang A, Wang B, Zhao Z, McMillin DW, Hu C, Li H, Wang J, Liang Y, Buhrlage SJ, Liang J, Liu J, Yang G, Brwon JR, Treon SP, Mitsiades CS, Griffin J, Liu Q, Gray NS. Discovery of a Potent, Covalent BTK Inhibitor for B-Cell Lymphoma. ACS Chem Biol. 2014 Feb 20. [Epub ahead of print] PubMed PMID: 24556163.