BQ-123

BQ-123 is a potent and selective endothelin A (ETA) receptor antagonist with an IC50 of 7.3 nM and a Ki of 25 nM. BQ-123 inhibits endothelin-1-mediated proliferation of human pulmonary artery smooth muscle cells and lowers blood pressure in different rat models of hypertension.

Product information

CAS Number: 136553-81-6

Molecular Weight: 610.70

Formula: C31H42N6O7

Chemical Name: 2-[(3R,6S,9S,12S,17aS)-9-[(1H-indol-3-yl)methyl]-6-(2-methylpropyl)-1,4,7,10,13-pentaoxo-3-(propan-2-yl)-hexadecahydro-1H-pyrrolo[1,2-a]1,4,7,10,13-pentaazacyclopentadecan-12-yl]acetic acid

Smiles: CC(C)[C@H]1NC(=O)[C@@H]2CCCN2C(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC2=CNC3=CC=CC=C23)NC(=O)[C@H](CC(C)C)NC1=O

InChiKey: VYCMAAOURFJIHD-MDLKPKIOSA-N

InChi: InChI=1S/C31H42N6O7/c1-16(2)12-21-27(40)33-22(13-18-15-32-20-9-6-5-8-19(18)20)28(41)35-23(14-25(38)39)31(44)37-11-7-10-24(37)29(42)36-26(17(3)4)30(43)34-21/h5-6,8-9,15-17,21-24,26,32H,7,10-14H2,1-4H3,(H,33,40)(H,34,43)(H,35,41)(H,36,42)(H,38,39)/t21-,22-,23-,24-,26+/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 50 mg/mL (81.87 mM; Need ultrasonic).

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vivo:

Sustained infusions of BQ-123 (0.16-164 nmol/kg per min, intravenously, for 6 h) produces dose-dependent reductions in mean arterial pressure in spontaneously hypertensive rats (SHR), the maximal reduction being obtained with a dose of 16 nmol/kg per min. BQ-123 (3 mg/kg; i.v.; given 15 minutes before pentylenetetrazole (PTZ)) impedes the formation and spread of seizure to a great degree in PTZ (50 mg/kg; i.p.) +BQ-123 groups.

Products are for research use only. Not for human use.