1. Hydroquinidine

Hydroquinidine  (Synonyms: Dihydroquinidine; (+)-Hydroquinidine; Hydroconquinine)

Cat. No.: HY-B0997 Purity: 99.97%
COA Handling Instructions

Hydroquinidine (Dihydroquinidine) is a derivative of Quinidine (an antiarrhythmic agent). Hydroquinidine prolongs the QT interval and has antiarrhythmic efficacy.

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

Hydroquinidine Chemical Structure

Hydroquinidine Chemical Structure

CAS No. : 1435-55-8

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Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 55 In-stock
Solution
10 mM * 1 mL in DMSO USD 55 In-stock
Solid
100 mg USD 50 In-stock
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Description

Hydroquinidine (Dihydroquinidine) is a derivative of Quinidine (an antiarrhythmic agent). Hydroquinidine prolongs the QT interval and has antiarrhythmic efficacy[1][2][3].

Clinical Trial
Molecular Weight

326.43

Formula

C20H26N2O2

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O[C@@H](C1=CC=NC2=C1C=C(OC)C=C2)[C@]3([H])[N@](C[C@@H]4CC)CC[C@H]4C3

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, protect from light, stored under nitrogen

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

Solvent & Solubility
In Vitro: 

DMSO : 20.83 mg/mL (63.81 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 3.0634 mL 15.3172 mL 30.6344 mL
5 mM 0.6127 mL 3.0634 mL 6.1269 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, stored under nitrogen). 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 (6.37 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% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.08 mg/mL (6.37 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 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.
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, stored under nitrogen)

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: 99.97%

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, stored under nitrogen). 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 3.0634 mL 15.3172 mL 30.6344 mL 76.5861 mL
5 mM 0.6127 mL 3.0634 mL 6.1269 mL 15.3172 mL
10 mM 0.3063 mL 1.5317 mL 3.0634 mL 7.6586 mL
15 mM 0.2042 mL 1.0211 mL 2.0423 mL 5.1057 mL
20 mM 0.1532 mL 0.7659 mL 1.5317 mL 3.8293 mL
25 mM 0.1225 mL 0.6127 mL 1.2254 mL 3.0634 mL
30 mM 0.1021 mL 0.5106 mL 1.0211 mL 2.5529 mL
40 mM 0.0766 mL 0.3829 mL 0.7659 mL 1.9147 mL
50 mM 0.0613 mL 0.3063 mL 0.6127 mL 1.5317 mL
60 mM 0.0511 mL 0.2553 mL 0.5106 mL 1.2764 mL
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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.

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Hydroquinidine
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HY-B0997
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