2. GPCR/G Protein
  3. Vasopressin Receptor
  4. Lixivaptan

Lixivaptan  (Synonyms: VPA-985; WAY-VPA 985)

Cat. No.: HY-14185 Purity: 99.30%
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Lixivaptan (VPA-985, WAY-VPA 985) is an orally active and selective vasopressin receptor V2 antagonist, with IC50 values of 1.2 and 2.3 nM for human and rat V2, respectively.

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

Lixivaptan Chemical Structure

Lixivaptan Chemical Structure

CAS No. : 168079-32-1

Size Price Stock Quantity
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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 97 In-stock
Solution
10 mM * 1 mL in DMSO USD 97 In-stock
Solid
2 mg USD 66 In-stock
5 mg USD 92 In-stock
10 mg USD 158 In-stock
25 mg USD 343 In-stock
50 mg USD 607 In-stock
100 mg USD 1082 In-stock
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Customer Review

Based on 2 publication(s) in Google Scholar

Lixivaptan Related Antibodies

Top Publications Citing Use of Products

View All Vasopressin Receptor Isoform Specific Products:

View All Isoforms
V1a Receptor  V1b Receptor  V2 Receptor 

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Lixivaptan (VPA-985, WAY-VPA 985) is an orally active and selective vasopressin receptor V2 antagonist, with IC50 values of 1.2 and 2.3 nM for human and rat V2, respectively.

IC50 & Target

V2 Receptor 

 

In Vitro

Lixivaptan displays competitive antagonist activity at V2 receptors[1].

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

Lixivaptan Related Antibodies
In Vivo

In conscious dogs, water-loaded with 30 mL/kg (po) and arginine vasopressin (AVP)-treated (0.4 μg/kg in oil, sc), lixivaptan (1, 3, and 10 mg/kg po) increases Uvol over the AVP-treated vehicle group by 438, 1018, and 1133%, respectively, while Uosm decreases from 1222 mOsm/kg (water-loaded and AVP treated vehicle) to 307, 221, and 175 mOsm/kg, respectively. In homozygous Brattleboro rats lacking AVP, lixivaptan at 10 mg/kg po (i.e., 10 times the dose producing V2 antagonist activity) b.i.d. for 5 days, shows a sustained antagonist action without evidence of agonist effects. In a randomized double-blind placebo-controlled ascending single dose study, patients (deprived of fluids overnight before dosing) are dosed orally with 30, 75, or 150 mg of lixivaptan. All three doses increase urine flow and serum sodium concentrations and produced significant dose-related decreases in urinary osmolality[1]. Phase II clinical trials in patients with congestive heart failure, liver cirrhosis with ascites or syndrome of inappropriate antidiuretic hormone have demonstrated that lixivaptan increases water clearance without affecting renal sodium excretion or activating the neurohormonal system[2].

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

473.93

Formula

C27H21ClFN3O2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(C1=C(Cl)C=C(NC(C2=CC(F)=CC=C2C)=O)C=C1)N(C3)C4=CC=CC=C4CN5C3=CC=C5
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility
In Vitro: 

DMSO : ≥ 150 mg/mL (316.50 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1100 mL 10.5501 mL 21.1002 mL
5 mM 0.4220 mL 2.1100 mL 4.2200 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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: ≥ 2.08 mg/mL (4.39 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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% Corn Oil

    Solubility: ≥ 2.08 mg/mL (4.39 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 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 (20.8 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)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

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).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.30%

COA (255 KB) LCMS (273 KB)

Handling Instructions (2659 KB)
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.1100 mL 10.5501 mL 21.1002 mL 52.7504 mL
5 mM 0.4220 mL 2.1100 mL 4.2200 mL 10.5501 mL
10 mM 0.2110 mL 1.0550 mL 2.1100 mL 5.2750 mL
15 mM 0.1407 mL 0.7033 mL 1.4067 mL 3.5167 mL
20 mM 0.1055 mL 0.5275 mL 1.0550 mL 2.6375 mL
25 mM 0.0844 mL 0.4220 mL 0.8440 mL 2.1100 mL
30 mM 0.0703 mL 0.3517 mL 0.7033 mL 1.7583 mL
40 mM 0.0528 mL 0.2638 mL 0.5275 mL 1.3188 mL
50 mM 0.0422 mL 0.2110 mL 0.4220 mL 1.0550 mL
60 mM 0.0352 mL 0.1758 mL 0.3517 mL 0.8792 mL
80 mM 0.0264 mL 0.1319 mL 0.2638 mL 0.6594 mL
100 mM 0.0211 mL 0.1055 mL 0.2110 mL 0.5275 mL
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Lixivaptan Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Lixivaptan168079-32-1VPA-985 WAY-VPA 985VPA985VPA 985Vasopressin ReceptorInhibitorinhibitorinhibit

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