2. GPCR/G Protein
  3. Vasopressin Receptor
  4. SRX246

SRX246 is a potent, CNS-penetrant, highly selective, orally bioavailable vasopressin 1a (V1a) receptor antagonist (Ki=0.3 nM for human V1a). SRX246 has no interaction at V1b and V2 receptors. SRX246 also displays negligible binding at 64 others receptors classes, including 35 G-proteincoupled receptors. SRX246 can be used for treatment of stress-related disorders.

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

SRX246 Chemical Structure

SRX246 Chemical Structure

CAS No. : 512784-93-9

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 542 In-stock
Solution
10 mM * 1 mL in DMSO USD 542 In-stock
Solid
5 mg USD 350 In-stock
10 mg USD 550 In-stock
50 mg USD 1650 In-stock
100 mg USD 2250 In-stock
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Based on 1 publication(s) in Google Scholar

SRX246 Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Purity & Documentation

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Description

SRX246 is a potent, CNS-penetrant, highly selective, orally bioavailable vasopressin 1a (V1a) receptor antagonist (Ki=0.3 nM for human V1a). SRX246 has no interaction at V1b and V2 receptors. SRX246 also displays negligible binding at 64 others receptors classes, including 35 G-proteincoupled receptors. SRX246 can be used for treatment of stress-related disorders[1].

IC50 & Target

Ki: 0.3 nM (human vasopressin 1a receptor)[1]
In Vivo

SRX246 (2 mg/kg; i.v.) treatment shows that the Cmax, AUC0-∞ and t1/2 values are 953 ng/mL, 1141 ng ▪h/mL, and 6.02 hours, respectively, in plasma pharmacokinetics. Following an oral administration (dose 20 mg/kg), The Cmax, AUC0-∞ and t1/2 values are 98.4 ng/mL, 624 ng ▪h/mL and 2.38 hours, respectively[1].

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

Animal Model: Male Sprague-Dawley rats[1]
Dosage: 2 mg/kg (20 mg/kg for p.o.)
Administration: i.v. (Pharmacokinetic Analysis)
Result: Following i.v. administration, the plasma concentration declined steadily with a half-life (t1/2) of 6 hours. The Cmax and AUC0-∞ values are 953 ng/mL, 1141 ng ▪h/mL, 6.02 hours. Following an oral administration, the Cmax, AUC0-∞ and t1/2 values 98.4 ng/mL, 624 ng ▪h/mL and 2.38 hours, respectively.
Clinical Trial
Molecular Weight

703.87

Formula

C42H49N5O5
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(N1CCC(N2CCCCC2)CC1)C[C@H](C(N[C@@H](C3=CC=CC=C3)C)=O)N4[C@@H]([C@H](N5[C@@H](C6=CC=CC=C6)COC5=O)C4=O)/C=C/C7=CC=CC=C7
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (142.07 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.4207 mL 7.1036 mL 14.2072 mL
5 mM 0.2841 mL 1.4207 mL 2.8414 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • 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: ≥ 2.5 mg/mL (3.55 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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% Corn Oil

    Solubility: ≥ 2.5 mg/mL (3.55 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 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 (25.0 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)

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).
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
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.4207 mL 7.1036 mL 14.2072 mL 35.5179 mL
5 mM 0.2841 mL 1.4207 mL 2.8414 mL 7.1036 mL
10 mM 0.1421 mL 0.7104 mL 1.4207 mL 3.5518 mL
15 mM 0.0947 mL 0.4736 mL 0.9471 mL 2.3679 mL
20 mM 0.0710 mL 0.3552 mL 0.7104 mL 1.7759 mL
25 mM 0.0568 mL 0.2841 mL 0.5683 mL 1.4207 mL
30 mM 0.0474 mL 0.2368 mL 0.4736 mL 1.1839 mL
40 mM 0.0355 mL 0.1776 mL 0.3552 mL 0.8879 mL
50 mM 0.0284 mL 0.1421 mL 0.2841 mL 0.7104 mL
60 mM 0.0237 mL 0.1184 mL 0.2368 mL 0.5920 mL
80 mM 0.0178 mL 0.0888 mL 0.1776 mL 0.4440 mL
100 mM 0.0142 mL 0.0710 mL 0.1421 mL 0.3552 mL
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SRX246 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:

SRX246512784-93-9SRX 246SRX-246Vasopressin ReceptorCNSpenetrationmooddisordersblood-brainbarrieroralvasopressinselectivePTSDHuntington’sdiseaseInhibitorinhibitorinhibit

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