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Title: Bq-123  
Author: World Heritage Encyclopedia
Language: English
Subject: Endothelin receptor antagonist, List of compounds with carbon numbers 30–39
Publisher: World Heritage Encyclopedia


CAS number 136553-81-6 YesY
PubChem 443289
IUPHAR ligand 997
Jmol-3D images Image 1
Molecular formula C31H42N6O7
Molar mass 610.70 g mol−1
S-phrases S22 S24/25
 N (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

BQ-123 is a cyclic peptide consisting of five amino acids. The amino acid sequence is D-tryptamine-D-aspartic acid-L-proline-D-valine-L-leucine.

BQ-123 is a selective ETA endothelin receptor antagonist.[1][2] As such, it is used as a biochemical tool in the study of endothelin receptor function.


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