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TBB 4,5,6,7-Tetrabromobenzotriazole Size: 10 mg M.W.=434.71 Batch No.: 1A/20050309. 15875 Gaither Drive Gaithersburg, MD 20877 FAX. 301-560-4919 TEL. 301-330-5966 Toll Free: 1-866-918-6812 Email: [email protected] Web: Cat # PKI-TBB-010.

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Size: 10 mg


Batch No.: 1A/20050309

15875 Gaither Drive

Gaithersburg, MD 20877

FAX. 301-560-4919

TEL. 301-330-5966

Toll Free: 1-866-918-6812

Email: [email protected]


Cat # PKI-TBB-010

This product is for laboratory research ONLY and not for diagnostic use

Description:A cell-permeable, selective inhibitor of casein kinase-2 (CK2)

(IC 50 = 0.9 and 1.6 µM for rat liver and human recombinant CK2 respectively). Exhibits modest discrimination between CK2 subunits, with Ki values ranging from 80 nM to 210 nM. Acts in an ATP/GTP-competitive manner and displays one to two orders of magnitude selectivity over a panel of 33 protein kinases.

Physical and Chemical Properties:Batch Molecular Formula: C6HBr4N3

Batch Molecular Weight: 434.71

CAS Number: [17374-26-4]

Physical Appearance: White solid

Batch Molecular Structure:

Solubility:DMSO to 100 mM Ethanol to 15 mM

Stability and Solubility Advice:

Some solutions can be difficult to obtain and can be

encouraged by rapid stirring, sonication or gentle warming

(in a 45-60°C water bath).

Information concerning product stability, particularly in

solution, has rarely been reported and in most cases we

can only offer a general guide. Our standard

recommendations are:

SOLIDS: Provided storage is as stated on the product label

and the vial is kept tightly sealed, the product can be stored

for up to 6 months from date of receipt.

SOLUTIONS: We recommend that stock solutions, once

prepared, are stored aliquoted in tightly sealed vials at -20 0C or below and used within 1 month. Wherever possible

solutions should be made up and stored on the same day.

References:1. Sarno et al (2001) Selectivity of 4,5,6,7-tetrabromobenzotriazole, an ATP site-directed inhibitor of protein kinase CK2 (\'casein kinase-2\'). FEBS Lett. 496 44.

2. Pagano et al (2004) Optimization of protein kinase CK2 inhibitors derived from 4,5,6,7-tetrabromobenzimidazole. J.Med.Chem. 47


3.Zien et al (2005) Tetrabromobenzotriazole (TBBt) and tetrabromobenzimidazole (TBBz) as selective inhibitors of protein kinase CK2: evaluation of their effects on cells and different molecular forms of human CK2. Biochim.Biophys.Acta. 1754 271.

Storage:Upon arrival store this product at 4 0C. For long term, store the product at -20 0C. Product shipped at ambient temperature.

2006 SignaGen Laboratories