BQ-788 sodium salt

Name: BQ-788 sodium salt
Brand: MedChemExpress
SKU: HY-15894
Rating: 5.0 (9 reviews)

Cat. No.: HY-15894 Purity: 98.21%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

BQ-788 sodium salt is a potent and selective ETB receptor antagonist, inhibiting ET-1 binding to ETB receptors with an IC₅₀ of 1.2 nM in human Girrardi heart cells.

For research use only. We do not sell to patients.

BQ-788 sodium salt Chemical Structure

CAS No. : 156161-89-6

Size	Price	Stock	Quantity
1 mg	USD 130	In-stock	Estimated Time of Arrival: December 31
5 mg	USD 300	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 430	In-stock	Estimated Time of Arrival: December 31
50 mg		Get quote
100 mg		Get quote

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Customer Review

Based on 9 publication(s) in Google Scholar

Other Forms of BQ-788 sodium salt:

BQ-788 Get quote

9 Publications Citing Use of MCE BQ-788 sodium salt

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ET_A ET_B

Biological Activity
Purity & Documentation
References
Customer Review

Description

BQ-788 sodium salt is a potent and selective ETB receptor antagonist, inhibiting ET-1 binding to ETB receptors with an IC₅₀ of 1.2 nM in human Girrardi heart cells^[1].

IC₅₀ & Target

ET_B

In Vitro

BQ-788 potently and competitively inhibits ¹²⁵I-labeled ET-1 binding to ETB receptors in human Girrardi heart cells with an IC₅₀ of 1.2 nM, but only poorly inhibits the binding to ETA receptors in human neuro-blastoma cell line SK-N-MC cells (IC₅₀, 1300 nM). BQ-788 shows no agonistic activity up to 10 μM and competitively inhibits thevasoconstriction induced by an ETB-selective agonist (pA2, 8.4). BQ-788 also inhibits several bioactivities of ET-1, such as bronchoconstriction, cell proliferation, and clearance of perfused ET-1^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

BQ-788 (3 mg/kg/h, i.v.) completely inhibits a pharmacological dose of ET-1- or sarafotoxin6c (0.5 nmol/kg, i.v.)-induced ETB receptor-mediated depressor, but not pressor responses in conscious rats. Furthermore, BQ-788 markedly increases the plasma concentration of ET-1, which is considered an index of potential ETB receptor blockade in vivo. In Dahl salt-sensitive hypertensive (DS) rats, BQ-788 (3 mg/kg/h, i.v.) increases blood pressure by about 20 mm Hg. It is reported that BQ-788 also inhibits ET-1-induced bronchoconstriction, tumor growth and lipopolysaccharide-induced organfailure^[1]. BQ 788 (3 mg/kg) results in an eightfold leftward shift in the ET-1 dose-response curve, suggesting a significant involvement of ETB dilator receptors^[2]. Mice are treated with 30 nmol BQ-788 by intraplantar, reduce mechanical hyperalgesia (47% and 42%), thermal hyperalgesia (68% and 76%), oedema (50% and 30%); myeloperoxidase activity (64% and 32%), and overt-pain like behaviours. Additionally, intraplantar treatment with clazosentan or BQ-788 decreases spinal (45% and 41%) and peripheral (47% and 47%) superoxide anion production as well as spinal (47% and 47%) and peripheral (33% and 54%) lipid peroxidation, respectively^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial

Molecular Weight

663.78

Formula

C₃₄H₅₀N₅NaO₇

CAS No.

156161-89-6

Appearance

Solid

Color

White to off-white

SMILES

CCCC[C@H](C(O[Na])=O)NC([C@@H](CC1=CN(C(OC)=O)C2=CC=CC=C12)NC([C@H](CC(C)(C)C)NC(N3[C@H](C)CCC[C@@H]3C)=O)=O)=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, protect from light, stored under nitrogen

*The compound is unstable in solutions, freshly prepared is recommended.

Solvent & Solubility

In Vitro:

DMSO : 30 mg/mL (45.20 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H₂O : 20 mg/mL (30.13 mM; Need ultrasonic)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.5065 mL	7.5326 mL	15.0652 mL
5 mM	0.3013 mL	1.5065 mL	3.0130 mL
10 mM	0.1507 mL	0.7533 mL	1.5065 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. The compound is unstable in solutions, freshly prepared is recommended.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 3 mg/mL (4.52 mM); Clear solution

This protocol yields a clear solution of ≥ 3 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (30.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 3 mg/mL (4.52 mM); Clear solution

This protocol yields a clear solution of ≥ 3 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (30.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 3 mg/mL (4.52 mM); Clear solution

This protocol yields a clear solution of ≥ 3 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (30.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Calculation results:

Working solution concentration: mg/mL

This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).

Purity & Documentation

Purity: 98.56%

Select Batch:

Data Sheet (280 KB) SDS (393 KB)

COA (256 KB) RP-HPLC (111 KB) MS (203 KB) Elemental Analysis Report (115 KB)

Handling Instructions (2659 KB)

References

[1]. Okada M, et al. BQ-788, a selective endothelin ET(B) receptor antagonist. Cardiovasc Drug Rev. 2002 Winter;20(1):53-66. [Content Brief]

[2]. Sargent CA, et al. Effect of endothelin antagonists with or without BQ 788 on ET-1 responses in pithed rats. J Cardiovasc Pharmacol. 1995;26 Suppl 3:S216-8. [Content Brief]

[3]. Fattori V, et al. Differential regulation of oxidative stress and cytokine production by endothelin ETA and ETB receptors in superoxide anion-induced inflammation and pain in mice. J Drug Target. 2016 Oct 5:1-27 [Content Brief]

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. The compound is unstable in solutions, freshly prepared is recommended.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

H₂O / DMSO	1 mM	1.5065 mL	7.5326 mL	15.0652 mL	37.6631 mL
	5 mM	0.3013 mL	1.5065 mL	3.0130 mL	7.5326 mL
	10 mM	0.1507 mL	0.7533 mL	1.5065 mL	3.7663 mL
	15 mM	0.1004 mL	0.5022 mL	1.0043 mL	2.5109 mL
	20 mM	0.0753 mL	0.3766 mL	0.7533 mL	1.8832 mL
	25 mM	0.0603 mL	0.3013 mL	0.6026 mL	1.5065 mL
	30 mM	0.0502 mL	0.2511 mL	0.5022 mL	1.2554 mL
DMSO	40 mM	0.0377 mL	0.1883 mL	0.3766 mL	0.9416 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.