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B150

Sigma-Aldrich

BQ-123

≥99%, sodium salt, lyophilized powder

Synonym(s):

BQ123, Cyclo(D-Trp-D-Asp-Pro-D-Val-Leu)

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200 μG
CHF 190.00
1 MG
CHF 508.00

CHF 190.00


Estimated to ship on15 April 2025



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200 μG
CHF 190.00
1 MG
CHF 508.00

About This Item

Empirical Formula (Hill Notation):
C31H41N6O7 Na
CAS Number:
Molecular Weight:
632.68
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.32

CHF 190.00


Estimated to ship on15 April 2025


Quality Level

Assay

≥99%

form

lyophilized powder

storage temp.

−20°C

SMILES string

[H][C@@]12CCCN1C(=O)[C@@H](CC(O)=O)NC(=O)[C@@H](Cc3c[nH]c4ccccc34)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](NC2=O)C(C)C

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

InChI key

VYCMAAOURFJIHD-PJNXIOHISA-N

Gene Information

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Amino Acid Sequence

cyclo-Asp-Pro-Val-Leu-Trp

Application

BQ-123 has been used as a selective endothelin-A receptor antagonist to study its effects on tumor necrosis factor α (TNFα)-induced human airway smooth muscle cells (HASMCs) proliferation.[1] It is also used as endothelin-A receptor antagonist to study its effects on TNFα-induced granulocyte–macrophage colony-stimulating factor (GM-CSF) expression.[2]

Biochem/physiol Actions

BQ-123 is an endothelin(Et) receptor antagonist and is exquisite for endothelin A (ETA) receptor.[3] It is a cyclic pentapeptide.[4]
Selective ETA endothelin receptor antagonist.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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J Knobloch et al.
Thorax, 64(12), 1044-1052 (2009-10-24)
There is an urgent need to inhibit endothelin-1 (ET-1) induced chronic inflammatory processes in early stages of lung diseases in order to prevent untreatable irreversible stages often accompanied by lung fibrosis and pulmonary hypertension. Nothing is known about the airway
M Clozel et al.
Life sciences, 52(9), 825-834 (1993-01-01)
The aim of this study was to evaluate the role of endothelin and endothelin ETA receptor in the early cerebral vasoconstriction following subarachnoid hemorrhage (SAH) in the rat. SAH induced by injection of autologous blood in the cisterna magna reduced
Elín I Magnúsdóttir et al.
Journal of neuroinflammation, 17(1), 123-123 (2020-04-24)
Itch is an unpleasant sensation that can be debilitating, especially if it is chronic and of non-histaminergic origin, as treatment options are limited. Endothelin-1 (ET-1) is a potent endogenous vasoconstrictor that also has the ability to induce a burning, non-histaminergic
T D Warner et al.
British journal of pharmacology, 112(1), 207-213 (1994-05-01)
1. Endothelin-1 binds almost irreversibly to its receptors and causes prolonged vasoconstrictions. Here we have studied the reversal of established responses to ET-1 in vivo and in vitro by BQ-123, an ETA receptor-selective antagonist, and/or PD 145065, an ETA/ETB receptor
F Cosentino et al.
Journal of cardiovascular pharmacology, 22 Suppl 8, S332-S335 (1993-01-01)
The present study was designed to determine whether an endothelinA (ETA)-receptor antagonist BQ-123 (cyclo[Dtrp, Dasp, pro-D-Val-Leu]) or an ET-converting enzyme inhibitor phosphoramidon may prevent development of cerebral vasospasm after subarachnoid hemorrhage (SAH). A "double hemorrhage" canine model of the disease

Questions

1–4 of 4 Questions  
  1. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  2. How should Product B150, BQ-123, be dissolved?

    1 answer
    1. This product is soluble in water (0.25mg/ml), yielding a clear colorless solution.

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  3. What is the solution stability for Product B150, BQ-123?

    1 answer
    1. We do not perform any solution stability studies on Product B150, BQ-123. The following reference indicates that the product is stable in solution for 24 hours but no temperature was mentioned.  Cardillo, C. et al., Hypertension, 33, 753-758 (1999).  The following abstract indicates that BQ-123 was used in an osmotic pump for a 2 week treatment.  Bonvollet, S. et al., A.J.P. - Heart, 266 (4), H1327-H1331 (1994).

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  4. Is Product B150 the free acid form of BQ-123, or is it a salt?

    1 answer
    1. Product No. B150 is BQ123 sodium salt.

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