1. Cell Cycle/DNA Damage
  2. Deubiquitinase
  3. HBX 19818

HBX 19818 is a specific inhibitor of ubiquitin-specific protease 7 (USP7), with an IC50 of 28.1 μM.

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

HBX 19818 Chemical Structure

HBX 19818 Chemical Structure

CAS No. : 1426944-49-1

Size Price Stock Quantity
Free Sample (0.1 - 0.5 mg)   Apply Now  
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 176 In-stock
Solution
10 mM * 1 mL in DMSO USD 176 In-stock
Solid
5 mg USD 160 In-stock
10 mg USD 250 In-stock
50 mg USD 570 In-stock
100 mg USD 790 In-stock
200 mg   Get quote  
500 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 16 publication(s) in Google Scholar

Top Publications Citing Use of Products

    HBX 19818 purchased from MedChemExpress. Usage Cited in: Nat Chem Biol. 2017 Dec;13(12):1207-1215.  [Abstract]

    The effects of HBX19818 on FLT 3 expression in FLT 3-ITD-expressing Ba/F3 cells after 22 h of treatment. The effects of P22077 on FLT 3 levels in FLT 3-ITD-expressing Ba/F3 cells after 22 h of treatment.

    HBX 19818 purchased from MedChemExpress. Usage Cited in: Mol Cell Biol. 2015 Apr 1;35(7):1157-68.  [Abstract]

    Western blot analysis of the chromatin fraction of HCT116 cells after treatment with the USP7 inhibitor HBX19818 for 4 or 8 h at 50 μM. Expression levels of USP7, RING1B, BMI1, and Ub-H2A are analyzed.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    HBX 19818 is a specific inhibitor of ubiquitin-specific protease 7 (USP7), with an IC50 of 28.1 μM.

    IC50 & Target

    IC50: 28.1 μM (USP7)[1]

    In Vitro

    HBX 19818 is an inhibitor of USP7, with an IC50 of 28.1 μM. HBX 19818 shows no effects on USP8, USP5, USP10, CYLD, UCH-L1, UCH-L3 or on SENP1, a SUMO protease, with IC50s of > 200 μM. HBX 19818 selectively inhibits USP7 with IC50 of ~6 μM in in human cancer cells. In addition, HBX 19818 (1.5, 4, 12, 36, or 100 μM) inhibits USP7 deubiquitination of polyubiquitinated p53. HBX 19818 (30 μM) also causes significantly higher levels of Mdm2 polyubiquitinated forms in USP7-overproducing HEK293 cells than those in DMSO-treated control cells. HBX 19818 inhibits HCT116 proliferation in a dose-dependent manner, with an IC50 of ~2 μM[1].

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

    Molecular Weight

    421.96

    Formula

    C25H28ClN3O

    CAS No.
    Appearance

    Solid

    Color

    Light yellow to yellow

    SMILES

    CN(CCCNC(C1=CC=C(N=C(CCCC2)C2=C3Cl)C3=C1)=O)CC4=CC=CC=C4

    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: 

    1M HCl : 100 mg/mL (236.99 mM; ultrasonic and adjust pH to 1 with HCl)

    DMSO : 20 mg/mL (47.40 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 2.3699 mL 11.8495 mL 23.6989 mL
    5 mM 0.4740 mL 2.3699 mL 4.7398 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 mg/mL (4.74 mM); Clear solution

      This protocol yields a clear solution of ≥ 2 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.0 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 mg/mL (4.74 mM); Clear solution

      This protocol yields a clear solution of ≥ 2 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 (20.0 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

    Purity: 99.35%

    References
    Kinase Assay
    [1]

    The ability of HBX 19818 and HBX 28,258 to inhibit a panel of deubiquitinating enzymes, including UCH-L3 (13 pM), USP7 (100 pM), USP8 (1.36 nM), UCH-L1 (2.5 nM), USP5 (10 nM), USP20 (10 nM), and USP2 (500 pM), is tested using the UbAMC substrate (300 nM). The potential effects of HBX 19818 and HBX 28,258 are also tested on the enzymatic activities of SENP1 (80 pM), cathepsin-B (100 pM), and caspase-3 (100 pM) using the SUMO1-AMC (750 nM), ZRR-AMC (3 μM), and DEVD-AMC (250 nM) substrates, respectively. All enzymes are tested in USP7 reaction buffer (50 mM Tris-HCl [pH 7.6], 0.5 mM EDTA, 5 mM DTT, 0.01% Triton X-100, and 0.05 mg/mL serum albumin), except for two enzymes, USP8 (same buffer but pH 8.8) and caspase-3 (100 mM HEPES [pH 7.5], 10% sucrose, and 0.1% CHAPS). All enzymes are pre-incubated with DMSO or compounds (including HBX 19818) for 30 min at room temperature, and the enzymatic reaction is initiated by adding the substrate of interest. The reaction mixture is incubated at room temperature for 1 hr, and the reaction is stopped by adding acetic acid (100 mM). The reactions are monitored using the PHERAstar[1].

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

    Cell Assay
    [1]

    HCT116 cell proliferation is evaluated by incubating HCT116 cells for 30 min in culture medium containing 10 µM 5- bromo-2-deoxyuridine (BrdU), which is incorporated into the DNA of proliferating cells. Cells are then harvested by trypsin treatment, collected by centrifugation, and the pellet is resuspended and incubated in 70% ethanol for 30 min at 4°C. After centrifugation and supernatant removal, DNA is denaturated by incubating it in 2 N HCl for 30 min at room temperature. The percentage of BrdU-containing cells is then determined by flow cytometry, making it possible to quantify proliferating cells. Cell cycle is evaluated after treatment with HBX 19818 for 24 hr, followed by fixing detached cells and trypsinized cells in 70% ethanol for 30 minutes at 4°C. Cells are then incubated in PBS supplemented with 1% BSA, 0.5% Tween 20, 50 µg/mL RNase A and 50 µg/mL propidiumiodide for 30 minutes at 37°C. Samples are analyzed on a FACSort fluorocytometer. The percentage of cells in the different phases of the cell cycle is calculated using Multicycle software[1].

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

    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 / 1M HCl 1 mM 2.3699 mL 11.8495 mL 23.6989 mL 59.2473 mL
    5 mM 0.4740 mL 2.3699 mL 4.7398 mL 11.8495 mL
    10 mM 0.2370 mL 1.1849 mL 2.3699 mL 5.9247 mL
    15 mM 0.1580 mL 0.7900 mL 1.5799 mL 3.9498 mL
    20 mM 0.1185 mL 0.5925 mL 1.1849 mL 2.9624 mL
    25 mM 0.0948 mL 0.4740 mL 0.9480 mL 2.3699 mL
    30 mM 0.0790 mL 0.3950 mL 0.7900 mL 1.9749 mL
    40 mM 0.0592 mL 0.2962 mL 0.5925 mL 1.4812 mL
    1M HCl 50 mM 0.0474 mL 0.2370 mL 0.4740 mL 1.1849 mL
    60 mM 0.0395 mL 0.1975 mL 0.3950 mL 0.9875 mL
    80 mM 0.0296 mL 0.1481 mL 0.2962 mL 0.7406 mL
    100 mM 0.0237 mL 0.1185 mL 0.2370 mL 0.5925 mL
    • 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.

    HBX 19818 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:
    HBX 19818
    Cat. No.:
    HY-17540
    Quantity:
    MCE Japan Authorized Agent: