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.

Chemical Structure

CAS# 1469988-75-7

Theoretical Analysis

MedKoo Cat#: 406460
Name: QL47
CAS#: 1469988-75-7
Chemical Formula: C27H21N5O2
Exact Mass: 447.17
Molecular Weight: 447.488
Elemental Analysis: C, 72.47; H, 4.73; N, 15.65; O, 7.15

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
Note: Price will be listed if it is available in the future.

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

Appearance: white solid powder

Purity: >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).

Solubility: 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).

HS Tariff Code: 2934.99.9001

Product Data:
Biological target:
In vitro activity:
In vivo activity:

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
Soluble in DMSO, not in water 0.0 0.00

Preparing Stock Solutions

The following data is based on the product molecular weight 447.487940000000000000000000000000 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
In vitro protocol:
In vivo protocol:

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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.