Pricing Availability   Qty

Save up to 40% on RUO Reagents with BIOSPRING24 (see details)

Description: Selective ETA antagonist
Purity: ≥95% (HPLC)
Citations (7)

Biological Activity for BQ-123

BQ-123 is a selective ETA endothelin receptor antagonist (Ki values are 1.4 and 1500 nM at ETA and ETB receptors respectively). Reduces ischemia-induced ventricular arrhythmias in a rat model.

Technical Data for BQ-123

M. Wt 611
Formula C31H42N6O7
Sequence WDPVL

(Modifications: Trp-1 = D-Trp, Asp-2 = D-Asp, Val-4 = D-Val, Cyclized)

Storage Store at -20°C
Purity ≥95% (HPLC)
CAS Number 136553-81-6
PubChem ID 52943236
Smiles CC(C)C[C@@H]1NC(=O)[C@H](NC(=O)[C@@H]2CCCN2C(=O)[C@H](CC(O)=O)NC(=O)[C@@H](CC2=CNC3=C2C=CC=C3)NC1=O)C(C)C

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data for BQ-123

Solubility Soluble to 0.10 mg/ml in water

Product Datasheets for BQ-123

Certificate of Analysis / Product Datasheet
Select another batch:

References for BQ-123

References are publications that support the biological activity of the product.

Agapitov and Haynes (2002) Role of endothelin in cardiovascular disease. J.Renin Angiotensin Aldosterone Syst. 3 1 PMID: 11984741

Ekelund et al (1994) Effects of selective ETB-receptor stimulation on arterial, venous and capillary functions in cat skeletal muscle. Br.J.Pharmacol. 112 887 PMID: 7921617

Makatani et al (2000) Effect of a novel bifunctional endothelin receptor antagonist, IRL 3630A, on guinea pig respiratory mechanics. Eur.J.Pharmacol. 406 139 PMID: 11011045

Sakamoto et al (1993) Distinct subdomains of human endothelin receptors determine their selectivity to endothelinA-selective antagonist and endothelinB-selective agonists. J.Biol.Chem. 268 8547 PMID: 8473300

If you know of a relevant reference for BQ-123, please let us know.

View Related Products by Product Action

View all ETA Receptor Antagonists

Keywords: BQ-123, BQ-123 supplier, Selective, ETA, antagonists, Receptors, Endothelin, 1188, Tocris Bioscience

7 Citations for BQ-123

Citations are publications that use Tocris products. Selected citations for BQ-123 include:

Sánchez et al (2014) Endothelin-1 contributes to endothelial dysfunction and enhanced vasoconstriction through augmented superoxide production in penile arteries from Ins-resistant obese rats: role of ET(A) and ET(B) receptors. Br J Pharmacol 171 5682 PMID: 25091502

Faraco et al (2014) Water deprivation induces neurovascular and cognitive dysfunction through vasopressin-induced oxidative stress. Am J Pathol 34 852 PMID: 24517977

Patel et al (2014) Activation of the endothelin system mediates pathological angiogenesis during ischemic retinopathy. J Neurosci 184 3040 PMID: 25203536

Craig and Martin (2012) Dominance of flow-mediated constriction over flow-mediated dilatation in the rat carotid artery. Br J Pharmacol 167 527 PMID: 22537086

Do you know of a great paper that uses BQ-123 from Tocris? Please let us know.

Reviews for BQ-123

There are currently no reviews for this product. Be the first to review BQ-123 and earn rewards!

Have you used BQ-123?

Submit a review and receive an Amazon gift card.

$50/€35/£30/$50CAN/¥300 Yuan/¥5000 Yen for first to review with an image

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review