1. Membrane Transporter/Ion Channel Neuronal Signaling Apoptosis
  2. Sodium Channel TRP Channel Apoptosis
  3. Amiloride hydrochloride

Amiloride hydrochloride  (Synonyms: MK-870 hydrochloride)

Cat. No.: HY-B0285A Purity: 99.83%
COA Handling Instructions

Amiloride hydrochloride (MK-870 hydrochloride) is an inhibitor of both epithelial sodium channel (ENaC) and urokinase-type plasminogen activator receptor (uTPA). Amiloride hydrochloride is a blocker of polycystin-2 (PC2; TRPP2) channel.

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

Amiloride hydrochloride Chemical Structure

Amiloride hydrochloride Chemical Structure

CAS No. : 2016-88-8

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10 mM * 1 mL in DMSO
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Customer Review

Based on 26 publication(s) in Google Scholar

Other Forms of Amiloride hydrochloride:

Top Publications Citing Use of Products

    Amiloride hydrochloride purchased from MedChemExpress. Usage Cited in: Microb Pathog. 2019 Jul 18:103638.   [Abstract]

    The viral mRNA and VP1 protein levels in IBRS-2 cells treated with different concentrations of Amiloride are determined by qPCR and Western Blot, respectively. ‘‘VC’’ indicates that the cells that are not treated with Amiloride.

    View All TRP Channel Isoform Specific Products:

    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Amiloride hydrochloride (MK-870 hydrochloride) is an inhibitor of both epithelial sodium channel (ENaC[1]) and urokinase-type plasminogen activator receptor (uTPA[2]). Amiloride hydrochloride is a blocker of polycystin-2 (PC2; TRPP2[3]) channel.

    IC50 & Target

    ENaC[1]; uTPA[2]; polycystin-2(TRPP2)[3]

    In Vitro

    Amiloride blocks δβγ channels with an IC50 of 2.6 μM. The Ki of amiloride for δβγ ENaC is 26-fold that of αβγ channels (0.1 μM for αβγ ENaC). Amiloride blockade of δβγ ENaC is much more voltage dependent compared with the αβγ channel. The Ki of amiloride for δαβγ channels is 920 and 13.7 μM at ?120 and +80 mV, respectively, which significantly differs from that of both αβγ and δβγ channels[1].
    Amiloride is a relatively selective inhibitor of the epithelial sodium channel (ENaC) with an IC50 (the concentration required to reach 50% inhibition of an ion channel) in the concentration range of 0.1 to 0.5 μM. Amiloride is a relatively poor inhibitor of the the Na+/H+ exchanger (NHE) with an IC50 as low as 3 μM in the presence of a low external [Na+] but as high as 1 mM in the presence of a high [Na+]. Amiloride is an even weaker inhibitor of the Na+/Ca2+ exchanger (NCX), with an IC50 of 1 mM. Amiloride (1 μM) and submicromolar doses of Benzamil (30 nM), doses known to inhibit the ENaC, inhibit the myogenic vasoconstriction response to increasing perfusion pressure by blocking the activity of ENaC proteins. Amiloride completely inhibits Na+ influx in doses known to be relatively specific for ENaC (1.5 μM) in vascular smooth muscle cells (VSMC)[2].

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

    In Vivo

    Amiloride (1 mg/kg/day) subcutaneously is found to reverse the initial increases in collagen deposition and prevent any further increases in the DOCA-salt hypertensive rat. Amiloride delays the onset of proteinuria and improved brain and kidney histologic scores in the saline-drinking, stroke-prone spontaneously hypertensive rats (SHRSP) compared with controls. Amiloride antagonizes or prevents actions of aldosterone in these cells and in cardiovascular and renal tissues in animals with salt-dependent forms of hypertension[2].

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

    Clinical Trial
    Molecular Weight

    266.09

    Formula

    C6H9Cl2N7O

    CAS No.
    Appearance

    Solid

    Color

    Light yellow to yellow

    SMILES

    O=C(C1=NC(Cl)=C(N)N=C1N)NC(N)=N.Cl

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    4°C, sealed storage, away from moisture

    *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 100 mg/mL (375.81 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    H2O : 7.14 mg/mL (26.83 mM; Need ultrasonic)

    *"≥" means soluble, but saturation unknown.

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 3.7581 mL 18.7906 mL 37.5813 mL
    5 mM 0.7516 mL 3.7581 mL 7.5163 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

    * 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)

    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 (9.40 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% (20% SBE-β-CD in Saline)

      Solubility: ≥ 2.5 mg/mL (9.40 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 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 (sealed storage, away from moisture)

    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: 99.83%

    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 (sealed storage, away from moisture). 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
    H2O / DMSO 1 mM 3.7581 mL 18.7906 mL 37.5813 mL 93.9532 mL
    5 mM 0.7516 mL 3.7581 mL 7.5163 mL 18.7906 mL
    10 mM 0.3758 mL 1.8791 mL 3.7581 mL 9.3953 mL
    15 mM 0.2505 mL 1.2527 mL 2.5054 mL 6.2635 mL
    20 mM 0.1879 mL 0.9395 mL 1.8791 mL 4.6977 mL
    25 mM 0.1503 mL 0.7516 mL 1.5033 mL 3.7581 mL
    DMSO 30 mM 0.1253 mL 0.6264 mL 1.2527 mL 3.1318 mL
    40 mM 0.0940 mL 0.4698 mL 0.9395 mL 2.3488 mL
    50 mM 0.0752 mL 0.3758 mL 0.7516 mL 1.8791 mL
    60 mM 0.0626 mL 0.3132 mL 0.6264 mL 1.5659 mL
    80 mM 0.0470 mL 0.2349 mL 0.4698 mL 1.1744 mL
    100 mM 0.0376 mL 0.1879 mL 0.3758 mL 0.9395 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.

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      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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