1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. Cytochrome P450

Cytochrome P450


Cytochrome p450 comprises a superfamily of heme-thiolate proteins named for the spectral absorbance peak of their carbon-monoxide-bound species at 450 nm. Having been found in every class of organism, including Archaea, the p450 superfamily is believed to have originated from an ancestral gene that existed over 3 billion years ago. Repeated gene duplications have subsequently given rise to one of the largest of multigene families. These enzymes are notable both for the diversity of reactions that they catalyze and the range of chemically dissimilar substrates upon which they act. Cytochrome p450s support the oxidative, peroxidative and reductive metabolism of such endogenous and xenobiotic substrates as environmental pollutants, agrochemicals, plant allelochemicals, steroids, prostaglandins and fatty acids. In humans, Cytochrome p450s are best known for their central role in phase I drug metabolism where they are of critical importance to two of the most significant problems in clinical pharmacology: drug interactions and interindividual variability in drug metabolism.

Cat. No. Product Name Effect Purity
  • HY-14275
    Inhibitor 99.96%
    Verapamil ((±)-Verapamil) is a calcium channel blocker and a potent and orally active first-generation P-glycoprotein (P-gp) inhibitor. Verapamil also inhibits CYP3A4. Verapamil has the potential for high blood pressure, heart arrhythmias and angina research.
  • HY-17356
    Inhibitor 99.93%
    Fenofibrate is a selective PPARα agonist with an EC50 of 30 μM. Fenofibrate also inhibits human cytochrome P450 isoforms, with IC50s of 0.2, 0.7, 9.7, 4.8 and 142.1 μM for CYP2C19, CYP2B6, CYP2C9, CYP2C8, and CYP3A4, respectively.
  • HY-N1201
    Inhibitor 99.58%
    Apigenin (4',5,7-Trihydroxyflavone) is a competitive CYP2C9 inhibitor with a Ki of 2 μM.
  • HY-B0105
    Inhibitor 99.86%
    Ketoconazole (R-41400) is an imidazole anti-fungal agent, a CYP3A4 and CYP24A1 inhibitor.
  • HY-103389
    Inhibitor 99.88%
    1-Aminobenzotriazole is a nonspecific and irreversible inhibitor of cytochrome P450 (P450).
  • HY-135560
    Nicotelline (Nicotellin) is a nicotine-related alkaloid, as well as a weak inhibitor of human cDNA-expressed cytochrome P-450 2A6 (CYP2A6). CYP2A6 mediates coumarin 7-hydroxylation, while Nicotelline fails to exhibit inhibition at 300 μM. Nicotelline can be used as a tracer and biomarker of particulate matter (PM) derived from tobacco smoke.
  • HY-153989
    SOS1-IN-16 (Comp 54) is a selective inhibitor of SOS1 with an IC50 of 7.2 nM. SOS1-IN-16 has inhibitory activity of CYP3A4 when using testosterone as a substrate, with an IC50 of 8.9μM. SOS1-IN-16 can be used for cancer research.
  • HY-151239
    ONT-993 is an aliphatic hydroxylated metabolite. ONT-993 inhibits CYP2D6 (IC50=7.9 µM) and causes metabolism-dependent inactivation of CYP3A (KI=1.6 µM).
  • HY-14248
    Inhibitor 99.92%
    Letrozole (CGS 20267) is a potent, selective, reversible and orally active non-steroidal inhibitor of aromatase, with an IC50 of 11.5 nM. Letrozole selective inhibits estrogen biosynthesis, and can be used for the research of breast cancer.
  • HY-70013
    Inhibitor 99.88%
    Abiraterone is a potent and irreversible CYP17A1 inhibitor with antiandrogen activity, which inhibits both the 17α-hydroxylase and 17,20-lyase activity of the cytochrome p450 enzyme CYP17 with IC50s of 2.5 nM and 15 nM, respectively.
  • HY-A0064
    Verapamil hydrochloride
    Inhibitor 99.98%
    Verapamil hydrochloride ((±)-Verapamil hydrochloride) is a calcium channel blocker and a potent and orally active first-generation P-glycoprotein (P-gp) inhibitor. Verapamil hydrochloride also inhibits CYP3A4. Verapamil hydrochloride has the potential for high blood pressure, heart arrhythmias and angina research.
  • HY-17514
    Inhibitor 99.81%
    Itraconazole (R51211) is a triazole antifungal agent and a potent and orally active Hedgehog (Hh) signaling pathway antagonist with an IC50 of ~800 nM. Itraconazole potently inhibits lanosterol 14α-demethylase (cytochrome P450 enzyme), thereby inhibits the oxidative conversion of lanosterol to ergosterol. Itraconazole has anticancer and antiangiogenic effects. Itraconazole is a oxysterol-binding protein (OSBP) inhibitor.
  • HY-B1751
    Quinidine (15% dihydroquinidine)
    Inhibitor 99.19%
    Quinidine (15% dihydroquinidine) is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine can be used for malaria research.
  • HY-N6972
    Inhibitor 99.71%
    Cepharanthine is a natural product that can be isolated from the plant Stephania cephalantha Hayata. Cepharanthine has anti-severe acute respiratory syndrome coronavirus 2 (anti-SARS-CoV-2) activities. Cepharanthine has good effective in suppressing viral proliferation (half maximal (50%) inhibitory concentration (IC50) and 90% inhibitory concentration (IC90) values of 1.90 and 4.46 µM. Cepharanthine can also effectively reverses P-gp-mediated multidrug resistance in K562 cells and increase enhances the sensitivity of anticancer agents in xenograft mice model. Cepharanthine shows inhibitory effects of human liver cytochrome P450 enzymes CYP3A4, CYP2E1 and CYP2C9. Cepharanthine has antitumor, anti-inflammatory and antinociceptive effects.
  • HY-75054
    Abiraterone acetate
    Inhibitor 99.96%
    Abiraterone acetate (CB7630) is an oral, potent, selective, and irreversible inhibitor of CYP17A1 with antiandrogen activity. Abiraterone acetate is a proagent form of Abiraterone (CB7598).
  • HY-N0125
    Inhibitor 99.80%
    Diosmetin is a natural flavonoid which inhibits human CYP1A enzyme activity with an IC50 of 40 μM in HepG2 cell.
  • HY-17508
    Inhibitor 99.90%
    Clarithromycin has a broad spectrum of antimicrobial activity. Clarithromycin inhibits the CYP3A4-catalyzed triazolam alpha-hydroxylation with the IC50 (Ki) value of 56 (43) μM. Clarithromycin significantly inhibits the HERG potassium current.Clarithromycin affects the autophagic flux by impairing the signaling pathway linking hERG1 and PI3K.
  • HY-N0153
    Inhibitor 99.75%
    Naringin is a major flavanone glycoside obtained from tomatoes, grapefruits, and many other citrus fruits. Naringin exhibits biological properties such as antioxidant, anti-inflammatory, and antiapoptotic activities.
  • HY-129993
    Gemfibrozil 1-O-β-glucuronide
    Inhibitor 99.88%
    Gemfibrozil 1-O-β-Glucuronide, a metabolite of Gemfibrozil (CI-719; HY-B0258), is a potent and competitive P450 (CYP) isoform CYP2C8 inhibitor with an IC50 of 4.07 μM.
  • HY-13832
    Inhibitor 99.73%
    Atovaquone (Atavaquone) is a potent, selective and orally active inhibitor of the parasite’s mitochondrial cytochrome bc1 complex. Atovaquone is against human and  P. falciparum cytochrome bc1 activity with IC50 values of 460 nM and 2.0 nM, respectively. Atovaquone is an antimalarial agent and has the potential for the investigation of neumocystis pneumonia, toxoplasmosis, malaria, and babesia.

Your Search Returned No Results.

Sorry. There is currently no product that acts on isoform together.

Please try each isoform separately.