BS 181 dihydrochloride

Cat. No. 5608

BS 181 dihydrochloride C22H32N6.2HCl

Price and Availability

For BS 181 dihydrochloride pricing & availability please select your country from the drop down menu:
By clicking submit you agree to accept a cookie from Tocris Bioscience. For details, please read our privacy and cookie policy.

Chemical Name: N5-(6-Aminohexyl)-3-(1-methylethyl)-N7-(phenylmethyl)pyrazolo[1,5-a]pyrimidine-5,7-diamine dihydrochloride

Biological Activity

Selective cdk7 inhibitor (IC50 = 21 nM). Displays >40-fold selectivity for cdk7 over others cdks. Promotes cell cycle arrest and apoptosis in a range of cancer cells in vitro and inhibits MCF-7 tumor xenograft growth in mice.

Technical Data

Soluble to 100 mM in water and to 100 mM in DMSO
>99 %
Store at +4°C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.

Certificate of Analysis / Safety Data Sheet

Certificate of Analysis: View current batch
Safety Data Sheet: View Safety Data Sheet

Ali et al (2009) The development of a selective cyclin-dependent kinase inhibitor that shows antitumor activity. Cancer Res. 69 6208. PMID: 19638587.

If you know of a relevant reference for this product please let us know.

Citations are publications that use Tocris products.

Do you know of a great paper that uses BS 181 dihydrochloride from Tocris? If so please let us know.

View Related Products by Target

View Related Products by Product Action

Keywords: BS 181 dihydrochloride, supplier, cyclin-dependent, kinase, 7, cdk7, BS-181, inhibitors, cancer, apoptosis, activating, 1397219-81-6, inhibits, Tocris Bioscience, Cyclin-Dependent Protein Kinase Inhibitor products

Quick Order

Find multiple products by catalog number

divider line

Neurodegeneration Research Product Guide

Neurodegeneration Product Guide

Our Neurodegeneration guide highlights over 275 products for neurodegeneration research. Request copy or view PDF today.

divider line

Cancer Research Product Guide

Cancer Research Product Guide

Our Cancer Research Guide highlights over 750 products for cancer research. Request copy or view PDF today.

divider line

Kinase Inhibitor Toolbox

80 Kinase inhibitors
pre-dissolved in DMSO

Kinase Inhibitor Toolbox

Includes many of the latest kinase inhibitors to become commercially available. Covers a wide range of kinase targets including EGFR, MAPK and CDK.

divider line

Kinases Product Listing

Kinases Product Listing

Our Kinase listing highlights over 400 products for kinase research. Request copy or view PDF today.

divider line

New Products in this Area

PI 3065

Potent and selective PI 3-kinase p110δ inhibitor


Potent and selective PFKFB3 inhibitor

STOCK2S 26016

Lysine deficient protein kinase (WNK) signaling inhibitor

rac-CCT 250863

Potent Nek2 inhibitor


Potent, selective cyclin-dependent kinase inhibitor


Potent PKCβ inhibitor

BMS 265246

Potent cdk1/2 inhibitor

Autocamtide-2-related inhibitory peptide, myristoylated

CaM kinase II inhibitor; enhanced cell permeable derivative of Autocamtide-2-related inhibitory peptide

MP A08

Selective ATP competitive SphK1 and 2 inhibitor; cell permeable


Potent and selective dual Akt1 and 2 inhibitor

VX 680

High affinity and selective Aurora kinase inhibitor

Imatinib mesylate

Potent and selective v-Abl tyrosine kinase inhibitor; also inhibits PDGFR and c-kit

TGX 221

Potent and selective PI 3-kinase β inhibitor

PF 543 hydrochloride

Potent and selective SphK1 inhibitor

Sign-up for new product e-alerts
divider line

Bio-Techne Events

Pharmacology 2016

Pharmacology 2016

December 13 - 15, 2016

London, UK