1. GPCR/G Protein
  2. CaSR
  3. NPS-2143 hydrochloride

NPS-2143 hydrochloride  (Synonyms: SB-262470A hydrochloride)

Cat. No.: HY-10171 Purity: 99.80%
COA Handling Instructions

NPS-2143 hydrochloride (SB-262470A hydrochloride), an orally active calcilytic agent, is a selective and potent calcium ion-sensing receptor (CaSR) antagonist. NPS-2143 hydrochloride (SB-262470A hydrochloride) blocks increases in cytoplasmic Ca2+ concentrations (IC50=43 nM) elicited by activating the Ca2+ receptor in HEK 293 cells expressing the human Ca2+ receptor.

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

NPS-2143 hydrochloride Chemical Structure

NPS-2143 hydrochloride Chemical Structure

CAS No. : 324523-20-8

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 114 In-stock
Solution
10 mM * 1 mL in DMSO USD 114 In-stock
Solid
1 mg USD 49 In-stock
5 mg USD 104 In-stock
10 mg USD 160 In-stock
50 mg USD 431 In-stock
100 mg   Get quote  
200 mg   Get quote  

* Please select Quantity before adding items.

This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 18 publication(s) in Google Scholar

Other Forms of NPS-2143 hydrochloride:

Top Publications Citing Use of Products

    NPS-2143 hydrochloride purchased from MedChemExpress. Usage Cited in: J Vet Sci. 2018 Mar 31;19(2):179-187.  [Abstract]

    The protein levels of calcium-sensing receptor (CaSR) and its signal molecules regulated by CaSR antagonist NPS 2143. The protein images of CaSR, protein kinase C (PKC), and inositol trisphosphate receptor (IP3R) in the presence of 20 mM tryptophan and NPS 2143.

    NPS-2143 hydrochloride purchased from MedChemExpress. Usage Cited in: Oxid Med Cell Longev. 2017;2017:3869561.  [Abstract]

    N-formyl-Met-Leu-Phe (fMLP; 10 nM) are used to stimulate the cells for 2 min, and the polymorphonuclear neutrophils (PMNs) without fMLP serve as the control. NPS-2143 (100 nM), Cinacalcet (100 nM), and PDTC (100 nM) are added and incubated. Protein expression results are representative of three experiments.

    NPS-2143 hydrochloride purchased from MedChemExpress. Usage Cited in: Am J Physiol Heart Circ Physiol. 2010 Nov;299(5):H1309-17.  [Abstract]

    Distribution of cardioprotective signaling kinases among fractions prepared from perfusion, IPC, and NPS2143-treated IPC hearts. After nondetergent caveolae fractionation via sucrose gradient ultracentrifugation, equal volume of each collected sucrose fraction is subjected to 4–12% SDS-PAGE under reducing condition and followed with p-ERK1/2 (A), p-AKT (B), and p-GSK-3β (C) IB detection. The representative IBs are taken and shown from one out of three independent experiments.
    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    NPS-2143 hydrochloride (SB-262470A hydrochloride), an orally active calcilytic agent, is a selective and potent calcium ion-sensing receptor (CaSR) antagonist. NPS-2143 hydrochloride (SB-262470A hydrochloride) blocks increases in cytoplasmic Ca2+ concentrations (IC50=43 nM) elicited by activating the Ca2+ receptor in HEK 293 cells expressing the human Ca2+ receptor[1][2].

    In Vitro

    NPS-2143 hydrochloride (SB-262470A hydrochloride) stimulates parathyroid hormone (PTH) secretion from bovine parathyroid cells with EC50 of 41 nM. Moreover, NPS-2143 hydrochloride also blocks the inhibitory effects of calcimimetic NPS R-467 on PTH secretion from bovine parathyroid cells and the inhibitory effects of extracellular Ca2+ on isoproterenol-stimulated increases in cyclic AMP formation[1].

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

    In Vivo

    When infused intravenously in normal rats, NPS-2143 hydrochloride (SB-262470A hydrochloride) causes a rapid and large increase in plasma levels of PTH. Ca2+ receptor antagonists are termed calcilytics and NPS-2143 is the first substance (either atomic or molecular) shown to possess such activity[1].
    When administered together with an antiresorptive agent (estradiol), NPS 2143 causes an increase in trabecular bone volume and bone mineral density in osteopenic rats[2].

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

    Molecular Weight

    445.38

    Formula

    C24H26Cl2N2O2

    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    N#CC1=C(OC[C@@H](CNC(C)(C)CC2=CC=C3C=CC=CC3=C2)O)C=CC=C1Cl.[H]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 (224.53 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    H2O : 1.85 mg/mL (4.15 mM; ultrasonic and warming and heat to 60°C)

    *"≥" means soluble, but saturation unknown.

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.2453 mL 11.2264 mL 22.4527 mL
    5 mM 0.4491 mL 2.2453 mL 4.4905 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 (5.61 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 (5.61 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
    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 2.2453 mL 11.2264 mL 22.4527 mL 56.1318 mL
    DMSO 5 mM 0.4491 mL 2.2453 mL 4.4905 mL 11.2264 mL
    10 mM 0.2245 mL 1.1226 mL 2.2453 mL 5.6132 mL
    15 mM 0.1497 mL 0.7484 mL 1.4968 mL 3.7421 mL
    20 mM 0.1123 mL 0.5613 mL 1.1226 mL 2.8066 mL
    25 mM 0.0898 mL 0.4491 mL 0.8981 mL 2.2453 mL
    30 mM 0.0748 mL 0.3742 mL 0.7484 mL 1.8711 mL
    40 mM 0.0561 mL 0.2807 mL 0.5613 mL 1.4033 mL
    50 mM 0.0449 mL 0.2245 mL 0.4491 mL 1.1226 mL
    60 mM 0.0374 mL 0.1871 mL 0.3742 mL 0.9355 mL
    80 mM 0.0281 mL 0.1403 mL 0.2807 mL 0.7016 mL
    100 mM 0.0225 mL 0.1123 mL 0.2245 mL 0.5613 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.

    • No file chosen (Maximum size is: 1024 Kb)
    • If you have published this work, please enter the PubMed ID.
    • Your name will appear on the site.

    NPS-2143 hydrochloride 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.

    Your Recently Viewed Products:

    Inquiry Online

    Your information is safe with us. * Required Fields.

    Product Name

     

    Salutation

    Applicant Name *

     

    Email Address *

    Phone Number *

     

    Organization Name *

    Department *

     

    Requested quantity *

    Country or Region *

         

    Remarks

    Bulk Inquiry

    Inquiry Information

    Product Name:
    NPS-2143 hydrochloride
    Cat. No.:
    HY-10171
    Quantity:
    MCE Japan Authorized Agent: