1. Autophagy Immunology/Inflammation Anti-infection
  2. Parasite Autophagy SARS-CoV Toll-like Receptor (TLR) HIV Antibiotic
  3. Chloroquine phosphate

Phosphate de chloroquine est un inhibiteur de l'autophagie et des récepteurs de toll-like (TLR). Phosphate de chloroquine est un antipaludéen et un anti-inflammatoire, il est largement utilisé pour traiter le paludisme et la polyarthrite rhumatoïde. Phosphate de chloroquine est très efficace dans le contrôle in vitro de l'infection par SARS-CoV-2 (COVID-19).

Chloroquinphosphat ist ein Inhibitor der autophagy und der toll-like receptors (TLRs). Chloroquinphosphat ist ein Malaria- und Entzündungshemmer, der häufig zur Behandlung von Malaria und rheumatoider Arthritis eingesetzt wird. Chloroquinphosphat ist hochwirksam bei der Kontrolle von SARS-CoV-2 (COVID-19)-Infektionen in vitro.

Chloroquine phosphate is an antimalarial and anti-inflammatory agent widely used to treat malaria and rheumatoid arthritis. Chloroquine phosphate is an autophagy and toll-like receptors (TLRs) inhibitor. Chloroquine phosphate is highly effective in the control of SARS-CoV-2 (COVID-19) infection in vitro (EC50=1.13 μM).

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

Chloroquine phosphate Chemical Structure

Chloroquine phosphate Chemical Structure

CAS No. : 50-63-5

Size Price Stock Quantity
100 mg USD 50 In-stock
200 mg USD 60 In-stock
500 mg USD 80 In-stock
1 g   Get quote  
5 g   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 534 publication(s) in Google Scholar

Other Forms of Chloroquine phosphate:

Top Publications Citing Use of Products

517 Publications Citing Use of MCE Chloroquine phosphate

WB
Proliferation Assay
IF

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Immun Inflamm Dis. 2023 Apr 12; 11:e830.

    Chloroquine (10 μM; 30 min) reverses the effect of OmpA on autophagy by inhibiting the expression of LC3 in BMDCs.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Immun Inflamm Dis. 2023 Apr 12; 11:e830.

    Chloroquine (10 μM; 30 min) reverses the effect of OmpA on autophagy by inhibiting the expression of Beclin1 and LC3II/I while increasing the expression of P62 in BMDCs.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Prostate. 2019 Jan;79(1):44-53.  [Abstract]

    Treatment with sub-dose of Everolimus (10 nM), together with CQ (5 µM) increases the levels of Bax and cleaved PARP, and decreases the levels of Bcl-2 expression in both PC3 and LNPER cells.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Oncogene. 2018 May;37(22):2936-2952.  [Abstract]

    IPZ-treated U87 and U251 cells are treated with or without Baf-A1 (5 nM), CQ (40 μM), or MG132 (1 μM) for 48 h, followed by western blots.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2018 Dec;109:1617-1627.  [Abstract]

    GFP-LC3B-expressing LX-2 cells are treated with DMSO, 3-MA (10 mM), or Chloroquine (30 μM) alone or in the presence of Carvedilol (CVD, 10 μM) for 24 h. The conversion of LC3B-I to LC3B-II is evaluated using immunoblotting.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Int J Mol Med. 2018 May;41(5):2535-2544.  [Abstract]

    MC3T3-E1 cells are treated with AICAR (10 μM) in the presence or absence of 3-MA (5 mM) or CQ (10 μM) for 24 h, after which western blot analysis is conducted.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Sci Rep. 2018 Mar 7;8(1):4108.  [Abstract]

    L02 cells exposed to PA (200 μM) with different concentrations of Rapamycin (Rapa) or Chloroquine (CQ) for 24 h. Palmitate (PA) induced higher protein expression of LC3 II/I and p62 compared with control as indicated by western blot.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Acta Biochim Biophys Sin (Shanghai). 2018 Feb 1;50(2):144-155.  [Abstract]

    Raw264.7 macrophages treated without or with Rapamycin (1 μΜ) or Chloroquine (20 μΜ) for 48 h. Western blot shows the protein expression levels of Atg5, Beclin1, LC3, and p62/SQSMT1.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: J Pharmacol Exp Ther. 2018 Oct;367(1):20-27.  [Abstract]

    Protein expression of LC3B and p62 in Panc-1 cells treated with Carboxamidotriazole (CAI) and/or Chloroquine (CQ).

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Biochem Biophys Res Commun. 2018 Sep 5;503(2):501-507.  [Abstract]

    Western blot analysis of autophagy markers and LAMP2 in mice with AAV-vaspin and Chloroquine (CQ) pretreatment after I/R (1d).

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Neurosci Lett. 2018 Aug 24;682:112-117.  [Abstract]

    After treatment of CDDP with or without the autophagy inhibitor CQ, the expression of LC3-II in the CQ+CDDP group is less than that in the CQ group but is higher than that in the CDDP group at 24 h and 96 h.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Cell Physiol Biochem. 2018;48(6):2318-2336.  [Abstract]

    Cells are treated with Rapamycin (Rp; 10 μM)+Eicosapentaenoic acid (EPA; 40 μM) with or without Chloroquine (CQ; 5 μM) for 48 h. Cell extracts are prepared and subjected to western blot analysis.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: EBioMedicine. 2017 May;19:49-59.  [Abstract]

    mCherry-GFPLC3 puncta analysis in SPC-A-1 cells. Cells are transfected with mCherry-GFP-LC3 plasmid and incubated for 6 h. Next, cells are pretreated with or without Chloroquine (50 μM) for 1 h followed by stimulation of 5 μM Flu for 24 h or 36 h. Scale bar, 10 μm and 2 μm (magnified graph). The lysosomal inhibitor Chloroquine (CQ) raises the lysosomal pH and increases the autophagic flux.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Sci Rep. 2017 Jun 7;7(1):2929.  [Abstract]

    p53 and Cell apoptosis. MCF7 and MDA-MB-231 cells are treated with 80 μM ω-3 FFAs, 20 μM ATRA alone or in combination for 48 h. The expression of PARP and p53 protein. β-Actin is used as an internal control.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Oncotarget. 2017 Nov 22;8(65):109135-109150.  [Abstract]

    Cells are treated with RA (20 μM) plus ω-3 PUFAs (80 μM) with or without CQ (5 μM) for 24 h. Cell extracts are prepared and subjected to western blotting analysis.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Acta Biochim Biophys Sin (Shanghai). 2016 Dec;48(12):1075-1084.  [Abstract]

    The change of LC3 is analyzed by western blotting after 6 h hypoxia in the presence or absence of Chloroquine of WDR26-overexpressing H9c2 cells.

    Chloroquine phosphate purchased from MedChemExpress. Usage Cited in: Tumour Biol. 2016 Jul;37(7):8811-24.  [Abstract]

    Assays for autophagy activity. Immunoblot analysis for LC3B. Compared with the Lenti-NC cells, the Lenti-CD44v6 cells display a higher intensity of autophagy flux but not steady-state levels when treated with 5-FU (*P<0.001).
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Chloroquine phosphate is an antimalarial and anti-inflammatory agent widely used to treat malaria and rheumatoid arthritis. Chloroquine phosphate is an autophagy and toll-like receptors (TLRs) inhibitor. Chloroquine phosphate is highly effective in the control of SARS-CoV-2 (COVID-19) infection in vitro (EC50=1.13 μM)[1][2][3][4].

    IC50 & Target[1][2][3][5]

    Plasmodium

     

    Malaria

     

    TLRs

     

    SARS-COV-2

     

    HIV-1

     

    In Vitro

    Chloroquine (CHQ, 20 μM) inhibits IL-12p70 release and reduces Th1-priming capacity of activated human monocyte-derived Langerhans-like cells (MoLC). Chloroquine (CHQ, 20 μM) enhances IL-1–induced IL-23 secretion in MoLC and subsequently increases IL-17A release by primed CD4+ T cells[1]. Chloroquine (25 μM) suppresses MMP-9 mRNA expression in normoxia and hypoxia in parental MDA-MB-231 cells. Chloroquine has cell-, dose- and hypoxia-dependent effects on MMP-2, MMP-9 and MMP-13 mRNA expression[2]. TLR7 and TLR9 inhibition using IRS-954 or chloroquine significantly reduces HuH7 cell proliferation in vitro[3].
    Chloroquine (0.01-100 μM; 48 hours) potently blocks virus infection (vero E6 cells infected with SARS-CoV-2) at low-micromolar concentration (EC50= 1.13 μM). Chloroquine blocks virus infection by increasing endosomal pH required for virus/cell fusion, as well as interfering with the glycosylation of cellular receptors of SARS-CoV[4].

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

    In Vivo

    Chloroquine (80 mg/kg, i.p.) does not prevent the growth of the triple-negative MDA-MB-231 cells with high or low TLR9 expression levels in the orthotopic mouse model[2]. TLR7 and TLR9 inhibition using IRS-954 or chloroquine significantly inhibits tumour growth in the mouse xenograft model. HCC development in the DEN/NMOR rat model is also significantly inhibited by chloroquine[3].

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

    Clinical Trial
    Molecular Weight

    515.86

    Formula

    C18H32ClN3O8P2

    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    O=P(O)(O)O.O=P(O)(O)O.CC(NC1=CC=NC2=CC(Cl)=CC=C12)CCCN(CC)CC

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    4°C, sealed storage, away from moisture and light

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

    Solvent & Solubility
    In Vitro: 

    H2O : ≥ 33 mg/mL (63.97 mM)

    DMSO : < 1 mg/mL (insoluble or slightly soluble)

    *"≥" means soluble, but saturation unknown.

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 1.9385 mL 9.6926 mL 19.3851 mL
    5 mM 0.3877 mL 1.9385 mL 3.8770 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 and light). 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:

    For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
    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:  PBS

      Solubility: 100 mg/mL (193.85 mM); Clear solution; Need ultrasonic and warming and heat to 60°C

    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.
    Calculation results:
    Working solution concentration: mg/mL
    This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
    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).
    Purity & Documentation

    Purity: 99.89%

    References
    Cell Assay
    [2]

    The cells are cultured in 6-well plates with normal culture medium in the presence of vehicle or 25 or 50 μM chloroquine, until near confluency, after which they are rinsed with sterile phosphate-buffered saline (PBS) and cultured further for the indicated times in serum-free culture medium. At the desired time-points, the culture medium is discarded and the cells are quickly harvested in lysis buffer and clarified by centrifugation. Subsequent to boiling the supernatants in reducing sodium dodecyl sulphate (SDS) sample buffer, equal amounts of protein (100 μg) are loaded per lane and the samples are electrophoresed into 10 or 4-20% gradient polyacrylamide SDS gels, then transferred to a nitrocellulose membrane. To detect TLR9, the blots are incubated overnight at 4°C with anti-TLR9 antibodies, diluted 1:500 in Tris-buffered saline with 0.1% (v/v) Tween-20 (TBST). Equal loading is confirmed with polyclonal rabbit anti-actin. Secondary detection is performed with horseradish peroxidase-linked secondary antibodies. The protein bands are visualized by chemiluminescence using an ECL kit.

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

    Animal Administration
    [2]

    Control and TLR9 siRNA MDA-MB-231 cells (5×105 cells in 100 μL) are inoculated into the mammary fat pads of four-week-old, immune-deficient mice (athymic nude/nu Foxn1). Treatments are started seven days after tumor cell inoculation. The mice are treated daily either with intraperitoneal (i.p.) chloroquine (80 mg/kg) or vehicle (PBS). The animals are monitored daily for clinical signs. Tumor measurements are performed twice a week and tumor volume is calculated according to the formula V=(π/6) (d1×d2)3/2, where d1 and d2 are perpendicular tumor diameters. The tumors are allowed to grow for 22 days, at which point the mice are sacrificed and the tumors are dissected for a final measurement. Throughout the experiments, the animals are maintained under controlled pathogen-free environmental conditions (20-21°C, 30-60% relative humidity and a 12-h lighting cycle). The mice are fed with small-animal food pellets and supplied with sterile water ad libitum.

    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, 6 months; -20°C, 1 month (sealed storage, away from moisture and light). 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 1 mM 1.9385 mL 9.6926 mL 19.3851 mL 48.4628 mL
    5 mM 0.3877 mL 1.9385 mL 3.8770 mL 9.6926 mL
    10 mM 0.1939 mL 0.9693 mL 1.9385 mL 4.8463 mL
    15 mM 0.1292 mL 0.6462 mL 1.2923 mL 3.2309 mL
    20 mM 0.0969 mL 0.4846 mL 0.9693 mL 2.4231 mL
    25 mM 0.0775 mL 0.3877 mL 0.7754 mL 1.9385 mL
    30 mM 0.0646 mL 0.3231 mL 0.6462 mL 1.6154 mL
    40 mM 0.0485 mL 0.2423 mL 0.4846 mL 1.2116 mL
    50 mM 0.0388 mL 0.1939 mL 0.3877 mL 0.9693 mL
    60 mM 0.0323 mL 0.1615 mL 0.3231 mL 0.8077 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.
    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:
    Chloroquine phosphate
    Cat. No.:
    HY-17589
    Quantity:
    MCE Japan Authorized Agent: