BQ-123

SL-1178

BQ-123, >98%

CAS No. : [136553-81-6]

Synonyms : Cyclo(-D-Trp-D-Asp-Pro-D-Val-Leu); Cyclo(Trp-Asp-Pro-Val-Leu)

IUPAC Name : Cyclo(D-alpha-aspartyl-L-prolyl-D-valyl-L-leucyl-D-tryptophyl)

Price And Availability
Pack Size	Price in USD	Add To Shopping Cart	Availability	Shipping Status
5MG	Request A Quote		Back Order	Estimated to ship on 01 November 2026
10MG	Request A Quote		Back Order	Estimated to ship on 01 November 2026
25MG	Request A Quote		Back Order	Estimated to ship on 01 November 2026
50MG	Request A Quote		Back Order	Estimated to ship on 01 November 2026
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Applications : BQ-123 is a highly potent, selective, and competitive ET_A (endothelin) receptor antagonist (K_i = 40 nM for ET_Aversus K_i = 2.5 μM for ET_B).

References : Nambi P. et al.: J. Pharmacol. Exp. Ther. 277, 1567,1996; Bax W. A. et al.: Trends Pharmacol. Sci. 15, 379, 1994; Ihara M. et al.: Biochem. Biophys. Res. Commun. 178, 132,1991.

Storage : Keep container tightly closed under nitrogen or argon and refrigerate for long-term shelf life.

Caution : In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing and gloves.