1. Immunology/Inflammation
  2. STING

CCCP (Synonyms: Carbonyl cyanide 3-chlorophenylhydrazone; Carbonyl Cyanide m-Chlorophenylhydrazone)

Cat. No.: HY-100941 Purity: 99.83%
Handling Instructions

CCCP is an oxidative phosphorylation uncoupler.

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

CCCP Chemical Structure

CCCP Chemical Structure

CAS No. : 555-60-2

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Free Sample (0.5-1 mg)   Apply now  
10 mM * 1 mL in DMSO USD 66 In-stock
Estimated Time of Arrival: December 31
50 mg USD 60 In-stock
Estimated Time of Arrival: December 31
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Customer Review

    CCCP purchased from MCE. Usage Cited in: J Exp Clin Cancer Res. 2018 Sep 5;37(1):218.

    The proliferation proteins cMyc and cyclin D1 are identified and confirmed by Western blot analysis after the colon cancer cells are treated with the indicated concentrations of XCT790 or DMSO for 48 h.

    CCCP purchased from MCE. Usage Cited in: J Exp Clin Cancer Res. 2018 Sep 5;37(1):218.

    WB for ERRα, IDH3A, c-Myc and Cyclin D1 in the HCT116 and SW480 cells treated with the indicated concentrations of Trametinib (0-100 nM) or DMSO for 48 h.
    • Biological Activity

    • Protocol

    • Technical Information

    • Purity & Documentation

    • References


    CCCP is an oxidative phosphorylation uncoupler.

    IC50 & Target


    In Vitro

    CCCP inhibits IFN-β production induced by various types of the STING pathway activators. CCCP suppresses the phosphorylation of STING, TBK1, and IRF3 via disrupting the association of STING and TBK1. CCCP inhibits activation of STING and its downstream signaling molecules, TBK1 and IRF3, but not STING translocation to the perinuclear region. CCCP impairs the interaction between STING and TBK1 and concomitantly triggers mitochondria fission. Importantly, the knockout of the crucial mitochondria fission regulator Drp1 restored the STING activity, indicating that CCCP down-modulates the STING pathway through DRP1-mediated mitochondria fragmentation. The protonophore CCCP that disrupts membrane potential suppresses the DMXAA-triggered STING signaling pathway. CCCP drastically suppresses the production of IFN-β in DMXAA-treated RAW264.7 cells and MEFs[1].

    In Vivo

    The same dosage of 3 mg/kg.bw each of CCCP and PPEF is used. In both the cases 1 log reduction is observed in the bacterial load. However, when 3 mg/kg.bw of PPEF is used in combination with 3 mg/kg.bw of CCCP, 6 log10 reduction is observed in the bacterial count. The developed model validates the enhanced antibacterial activity of combination therapy[2].99mTc-MIBI signals in the hearts of SD rats administered CCCP (4 mg/kg intraperitoneally) or vehicle is also measured. 99mTc-MIBI signals decrease in rat hearts administered CCCP, and the ATP content, as measured by 31P magnetic resonance spectroscopy, decreased simultaneously. To investigate whether CCCP decreased the 99mTc-MIBI signals in rats, we analyzed the radioisotope activity of excised heart tissue from rats administered CCCP. At 180 min after 99mTc-MIBI injection, the 99mTc-MIBI signals from the hearts in the CCCP group are significantly lower than those in the vehicle group[3].

    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 150 mg/mL (733.07 mM)

    *"≥" means soluble, but saturation unknown.

    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 4.8871 mL 24.4355 mL 48.8711 mL
    5 mM 0.9774 mL 4.8871 mL 9.7742 mL
    10 mM 0.4887 mL 2.4436 mL 4.8871 mL
    *Please refer to the solubility information to select the appropriate solvent.
    Cell Assay

    MEFs (5×105), Raw264.7 cells (1×106), and HeLa cells stable expressing STING (1.5×105) are stimulated with DMXAA (100 μg/mL) for 2 or 3 h, or transfected with c-di-GMP (5 μM), cGAMP (5 μg/mL), or poly (dA:dT) (2 μg/mL) for 6 h. CCCP (50 μM) is co-treated with DMXAA (100 μg/mL), or treated for the last 5 h in case of treatment of c-di-GMP or poly (dA:dT)[1].

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

    Animal Administration

    Female Balb/c mice n=6, per dosing group weighing 20-25 g are rendered neutropenic with 2 intraperitoneal injections of cyclophosphamide 150 mg/kg.bw and 100 mg/kg.bw on 4 days and 1 day prior to bacterial infection. 0.1 mL of the 106 CFU/mL bacterial suspension is injected into right posterior thigh muscle. After 2 h post-infection mice are treated with PPEF (3 mg/kg.bw), CCCP (3 mg/kg.bw) and in combination PPEF+CCCP (3 mg/kg.bw+3 mg/kg.bw) dissolved in 0.1 mL sterile water by single bolus intravenous injection. Twenty-four hours after antibacterial administration, the mice are humanely sacrificed. Right thigh muscles from each mouse are aseptically collected, homogenized and serially diluted and processed for quantitative cultures.
    Rats are randomly divided into three groups. One group is euthanized 15 min after a dose of 12.5 MBq (337.8 μCi) 99mTc-MIBI injection (n=6). The other two groups are administered 4 mg/kg CCCP (CCCP group; n=7) or vehicle (vehicle group; n=7) by intraperitoneal (i.p.) injection 90 min after the same dose of 99mTc-MIBI injection and are euthanized after an additional 90 min (180 min after the 99mTc-MIBI injection). Hearts are excised and weighed, and radioactivity is measured between 110 and 170 keV with an auto-well gamma counter. 99mTc-MIBI signals are corrected for physical decay (half-life=6 h).

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

    Molecular Weight




    CAS No.




    Powder -20°C 3 years
      4°C 2 years
    In solvent -80°C 6 months
      -20°C 1 month

    Room temperature in continental US; may vary elsewhere

    Purity: 99.83%

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    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

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    × = ×
    C1   V1   C2   V2

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    Cat. No.: HY-100941