Key Documents

View All Documentation

401010

I-BET

Name: I-BET
Brand: MM

A cell-permeable benzodiazepine compound that binds the tandem bromodomains of BET (bromodomain and extra terminal domain) family members BRD2 (1-473), BRD3 (1-434), and BRD4 (1-477) with high affinity.

Synonym(s):

I-BET, (2-[(4chlorophenyl)-1-methyl-8-(methyloxy)-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepin-4-yl]-N-ethylacetamide, GSK525762A, (S)-2-(6-(4-Chlorophenyl)-8-methoxy-1-methyl-4H-benzo[f][1,2,4]triazolo[4,3-a][1,4]diazepin-4-yl)-N-ethylacetamide, BRD2 Inhi, GSK525762A, (S)-2-(6-(4-Chlorophenyl)-8-methoxy-1-methyl-4H-benzo[f][1,2,4]triazolo[4,3-a][1,4]diazepin-4-yl)-N-ethylacetamide, (2-[(4chlorophenyl)-1-methyl-8-(methyloxy)-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepin-4-yl]-N-ethylacetamide, BRD2 Inhibitor I, BRD3 Inhibitor I, BRD4 Inhibitor I

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):

C₂₂H₂₂ClN₅O₂

CAS Number:

1260907-17-2

Molecular Weight:

423.90

UNSPSC Code:

12352200

NACRES:

NA.77

MDL number:

MFCD22417091

Assay:

≥98% (HPLC)

Form:

solid

Storage condition:

OK to freeze, protect from light

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

Quality Segment

100

assay

≥98% (HPLC)

form

solid

manufacturer/tradename

Calbiochem^®

storage condition

OK to freeze, protect from light

color

yellow-white

solubility

DMSO: 50 mg/mL

shipped in

ambient

storage temp.

−20°C

SMILES string

Clc1ccc(cc1)C2=N[C@H](c3[n](c(nn3)C)c4c2cc(cc4)OC)CC(=O)NCC

InChI

1S/C22H22ClN5O2/c1-4-24-20(29)12-18-22-27-26-13(2)28(22)19-10-9-16(30-3)11-17(19)21(25-18)14-5-7-15(23)8-6-14/h5-11,18H,4,12H2,1-3H3,(H,24,29)/t18-/m0/s1

InChI key

AAAQFGUYHFJNHI-SFHVURJKSA-N

Description

General description

A cell-permeable benzodiazepine compound that binds the tandem bromodomains of BET (bromodomain and extra terminal domain) family members BRD2 (1-473), BRD3 (1-434), and BRD4 (1-477) with high affinity (K_d = 61.3, 50.5, and 55.2 nM, respectively, by ITC) and effectively competes against tetra-acetylated H4 peptide (Millipore cat. no. 12-379) for BRD2/3/4 binding (IC₅₀ = 32.5, 42,4, and 36.1 nM, respectively, in competitive equilibrium binding assays), while exhibiting little affinity toward 5 other bromodomain-containing proteins (ATAD2, BAZ2B, CREBBP, PCAF, SP140) or a panel of 38 cellular enzymes, GPCRs, transporters, and ion channels. Shown to differentially modulate LPS-induced gene expression, notably suppressing LPS-induced upregulation of genes involved in inflammatory response, in murine BMDMs (bone marrow-derived macrophages) in vitro (30 min 1 µM pretreatment) and effectively prevent LPS-, heat-killed Salmonella typhimurium-, and CLP- (caecal ligation and puncture) induced death in mice in vivo (30 mg/kg i.v.). Cellular Brd2/3/4 knockdown using siRNA results in mostly the same effect as I-BET treatment in modulating LPS gene induction profile in murine BMDMs, but not without exceptions, indicating that not all BET-dependent transcription regulations are mediated via its binding to acetylated histones. Also available as a 50 mM solution in DMSO (Cat. No. 5.06071).

Packaging

Packaged under inert gas

Preparation Note

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Nicodeme, E., et al. 2010. Nature468, 1119.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Regulatory Review (Z)

Still not finding the right product?

Explore all of our products under I-BET

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c