Cytochrome P450

Cytochrome P450 (CYP) inhibitors act on heme enzymes that oxidize drugs, steroids and other lipophilic compounds. The name comes from the 450 nm absorption peak of a carbon monoxide-bound pigment, described in liver microsomes in 1964. Hepatic enzymes such as CYP3A4, CYP2C9 and CYP1A2 metabolize a large share of drugs and many environmental chemicals. Other members synthesize steroid hormones, among them CYP17A1, which is required for androgen production. The P450 system can also convert chemicals into toxic or carcinogenic metabolites, which links it closely to toxicology. Abiraterone inhibits CYP17A1, while clarithromycin and itraconazole serve as CYP3A4 inhibitors in drug-interaction studies. Alizarin is listed for its inhibition of enzymes in the CYP1 family.

Items 201-225 of 231

  • 5,7,2',6'-Tetrahydroxyflavone
    Cat. No.
    A69895

    5,7,2',6'-Tetrahydroxyflavone

    5,7,2',6'-Tetrahydroxyflavone is a natural flavonoid that functions as a selective inhibitor of CYP3A4, impacting the hepatic metabolism of steroids. It demonstrates significant biological activity with an IC50 value of 7.8 μM, making it a valuable tool for research on testosterone metabolism and drug interactions. This compound is particularly useful for studies investigating the modulation of cytochrome P450 enzymes in pharmacological and toxicological contexts.

    1 mg
    $340.00
    5 mg
    $870.00
    All 2 sizes
  • CYP51-IN-21
    Cat. No.
    A69897

    CYP51-IN-21

    CYP51-IN-21 is a potent inhibitor of cytochrome P450 51 (CYP51), demonstrating significant antifungal activity against various pathogenic fungi, including drug-resistant strains. By targeting CYP51, CYP51-IN-21 disrupts the biosynthesis of essential sterols, impairing fungal growth and viability. Additionally, CYP51-IN-21 effectively inhibits the formation of fungal biofilms, making it a valuable candidate for research in antifungal therapeutics and biofilm-related studies.

    25 mg
    $1,275.00
    50 mg
    $1,625.00
    All 3 sizes
  • Dihydrocubebin
    Cat. No.
    A69904

    Dihydrocubebin

    Synonyms: (-)-Dihydrocubebin

    Dihydrocubebin is a selective inhibitor of cytochrome P450 3A4 (CYP3A4), a key enzyme involved in drug metabolism. Isolated from Piper cubeba, it demonstrates potent inhibitory effects, making it a valuable tool for studying CYP3A4-related metabolic processes. Its role in research applications includes evaluating drug interactions and understanding the metabolic pathways of pharmaceutical compounds.

    1 mg
    $135.00
    5 mg
    $345.00
    All 3 sizes
  • 2-Methoxy-5-acetoxyfuranogermacr-1(10)-en-6-one
    Cat. No.
    A69910

    2-Methoxy-5-acetoxyfuranogermacr-1(10)-en-6-one

    2-Methoxy-5-acetoxyfuranogermacr-1(10)-en-6-one is a potent aromatase (CYP19) inhibitor, exhibiting an IC50 value of 0.21 μM against human targets. This compound is particularly relevant for research in breast cancer, providing insights into estrogen synthesis regulation and its implications in cancer progression. Its use in preclinical studies may advance the understanding of therapeutic strategies targeting estrogen-dependent tumors.

    Out of stock

    All 3 sizes
  • YM116
    Cat. No.
    A69913

    YM116

    YM116 is a potent and orally active competitive inhibitor of CYP17A1, with a reported Ki of 0.38 nM. By specifically inhibiting the C17-20 lyase activity, YM116 effectively reduces the synthesis of adrenal androgens, leading to decreased serum testosterone levels and lower dehydroepiandrosterone sulfate concentrations. This compound is valuable for research applications involving androgen-related disorders and prostate health.

    Out of stock

    All 3 sizes
  • CYP1B1-IN-9
    Cat. No.
    A69916

    CYP1B1-IN-9

    CYP1B1-IN-9 is a highly selective competitive inhibitor of CYP1B1, demonstrating an IC50 of 1.48 nM. It effectively inhibits the migration and invasion of A549/T cells and has been shown to resensitize cells resistant to Paclitaxel. Notable for its favorable pharmacokinetic properties, metabolic stability, and safety profile, CYP1B1-IN-9 serves as a valuable tool for investigating tumor-drug resistance mechanisms in cancer research.

    Out of stock

    All 3 sizes
  • 7ETMC
    Cat. No.
    A69917

    7ETMC

    7ETMC is a selective inhibitor of human cytochrome P450 enzymes 1A1 and 1A2. It exhibits potent inhibitory activity, with IC50 values of 0.46 μM and 0.50 μM, respectively, demonstrated within the first six minutes of exposure. Notably, 7ETMC does not inhibit cytochrome P450 enzymes 2A6 and 2B1. This compound may be valuable for research applications involving drug metabolism and the study of enzyme activity related to these particular cytochrome P450 isoenzymes.

    25 mg
    $1,275.00
    50 mg
    $1,625.00
    All 3 sizes
  • 8α-(2-Methylacryloyloxy)-hirsutinolide-13-O-acetate
    Cat. No.
    A69919

    8α-(2-Methylacryloyloxy)-hirsutinolide-13-O-acetate

    8α-(2-Methylacryloyloxy)-hirsutinolide-13-O-acetate functions as an irreversible inhibitor of CYP2A6, exhibiting IC50 values of 8.64 μM and 22.3 μM under pre-incubation and co-incubation conditions, respectively. Additionally, this compound demonstrates inhibitory activity against monoamine oxidase A (MAO-A) and monoamine oxidase B (MAO-B), with IC50 values of 60.2 μM and 38.6 μM, respectively. It serves as a valuable tool for research involving drug metabolism, neurochemistry, and the study of pharmacological responses influenced by these metabolic pathways.

    5 mg
    $425.00
    All 1 sizes
  • GW694481
    Cat. No.
    A69922

    GW694481

    GW694481 is a selective inhibitor of CYP2C9 and CYP3A4, exhibiting IC50 values of 2.1 μM and 17.0 μM, respectively. This compound functions as an ApoA1 upregulator, enhancing the expression of ApoA1 in human hepatic cells. GW694481 is valuable for research focused on atherosclerosis and related metabolic disorders, providing insights into lipid metabolism and cardiovascular health.

    Out of stock

    All 3 sizes
  • (R)-N-3-Benzylnirvanol
    Cat. No.
    A69929

    (R)-N-3-Benzylnirvanol

    (R)-N-3-Benzylnirvanol is the R-isomer of the racemic compound (±)-N-3-Benzylnirvanol, consisting of both (+)-N-3-Benzylnirvanol and (-)-N-3-Benzylnirvanol. This compound serves as a potent and selective inhibitor of cytochrome P450 enzymes, specifically exhibiting a Ki value of 0.25 μM for CYP2C19. Research applications include the study of drug metabolism and interactions, as well as pharmacological investigations targeting cytochrome P450-mediated pathways.

    Out of stock

    All 3 sizes
  • hCYP3A4-IN-1
    Cat. No.
    A69933

    hCYP3A4-IN-1

    hCYP3A4-IN-1 is a potent inhibitor of human cytochrome P450 3A4 (hCYP3A4) with notable activity in both human liver microsomes and CHO-3A4 stable cell lines, exhibiting IC50 values of 43.93 nM and 153.00 nM, respectively. This inhibitor effectively blocks CYP3A4-mediated hydroxylation of N-ethyl-1,8-naphthalimide (NEN) in a competitive manner, with a Ki of 30.00 nM. hCYP3A4-IN-1 is valuable for research applications focused on drug metabolism and interactions involving CYP3A4.

    Out of stock

    All 3 sizes
  • Tabimorelin hemifumarate
    Cat. No.
    A69935

    Tabimorelin hemifumarate

    Synonyms: NN703 hemifumarate

    Tabimorelin hemifumarate is a potent inhibitor of the cytochrome P450 enzyme CYP3A4. This compound functions as a growth hormone secretagogue, promoting the secretion of growth hormone in the body. Its key biological activities make it valuable for research applications in endocrine signaling and pharmacokinetics, particularly in studies assessing drug metabolism and interactions involving CYP3A4.

    1 mg
    $360.00
    5 mg
    $710.00
    All 3 sizes
  • CAY 10434
    Cat. No.
    A69940

    CAY 10434

    CAY 10434 is a potent inhibitor of CYP4A hydroxylase, demonstrating significant effects on vascular smooth muscle contractility. This compound enhances the contractile response to angiotensin II, achieving a maximal contractile response (Emax) of 6764 mg. CAY 10434 is valuable for research into cardiovascular physiology and the regulatory mechanisms underlying vascular reactivity.

    2 mg
    $30.00
    5 mg
    $45.00
    All 7 sizes
  • CYP11B2-IN-3
    Cat. No.
    A69943

    CYP11B2-IN-3

    CYP11B2-IN-3 is a selective inhibitor of CYP11B2, demonstrating an IC50 value of 12.92 nM for CYP11B2 and 2341 nM for CYP11B1. This compound is orally active, making it suitable for in vivo studies. CYP11B2-IN-3 is primarily applicable in research related to hypertension, providing a valuable tool for investigating the role of CYP11B2 in adrenal steroidogenesis and blood pressure regulation.

    Out of stock

    All 3 sizes
  • Peucedanol
    Cat. No.
    A69944

    Peucedanol

    Peucedanol is a non-competitive inhibitor of CYP3A4 with a Ki value of 4.07 μM, while functioning as a competitive inhibitor of CYP1A2 and CYP2D6, with Ki values of 3.39 μM and 6.77 μM, respectively. This compound plays a significant role in pharmacological research by modulating drug metabolism pathways. Its ability to inhibit key cytochrome P450 enzymes makes it a valuable tool for studies examining drug interactions and metabolic regulation.

    Out of stock

    All 3 sizes
  • Tesmilifene hydrochloride
    Cat. No.
    A69945

    Tesmilifene hydrochloride

    Tesmilifene hydrochloride is a cytochrome P450 inhibitor with notable implications in cancer research. This compound displays hormonal activity that affects DNA synthesis in MCF-7 cells and has been shown to stimulate tumor growth in mouse and rat models. Tesmilifene hydrochloride is particularly relevant for studies investigating the mechanisms of multidrug resistance in cancer therapeutics.

    Out of stock

    All 3 sizes
  • Licopyranocoumarin
    Cat. No.
    A69948

    Licopyranocoumarin

    Licopyranocoumarin is an isoflavonoid known for its inhibitory action on the cytochrome P450 enzyme CYP3A4, exhibiting an IC50 of 32 μM. This compound also demonstrates significant neuroprotective properties, making it a valuable reagent for studies focused on drug metabolism and neurodegenerative disorders. Researchers may utilize Licopyranocoumarin to explore its effects on enzyme activity and potential therapeutic applications in neurological research.

    1 mg
    $120.00
    5 mg
    $625.00
    All 2 sizes
  • CYP1B1-IN-1
    Cat. No.
    A69949

    CYP1B1-IN-1

    CYP1B1-IN-1 is a selective inhibitor of cytochrome P450 1B1 (CYP1B1) with an IC50 value of 0.49 nM. This compound is valuable for studying the role of CYP1B1 in various biological processes, including the metabolism of xenobiotics and the activation of pro-carcinogens. CYP1B1-IN-1 is suitable for research applications focused on cancer biology and toxicology, providing insights into the pharmacological modulation of CYP1B1 activity.

    1 mg
    $220.00
    5 mg
    $525.00
    All 6 sizes
  • BMS-351
    Cat. No.
    A69952

    BMS-351

    BMS-351 is a potent, orally active nonsteroidal inhibitor of CYP17A1 lyase, demonstrating IC50 values of 19 nM for human CYP17A1 and 4 nM for cynomolgus monkey CYP17A1. This compound is primarily utilized in research focused on castration-resistant prostate cancer, providing insights into hormonal regulation and potential therapeutic interventions in this challenging malignancy.

    25 mg
    $1,275.00
    50 mg
    $1,625.00
    All 3 sizes
  • (E/Z)-DMU2105
    Cat. No.
    A69956

    (E/Z)-DMU2105

    (E/Z)-DMU2105 is a selective inhibitor of CYP1B1, demonstrating potent inhibition with an IC50 value of 10 nM in yeast-derived microsomes and 63.65 nM in live recombinant yeast and human HEK293 kidney cells. This compound is valuable for research focused on cancer, glaucoma, ischemia, and obesity, offering insights into the role of CYP1B1 in various biological processes. Its specificity and potency make it a suitable tool for elucidating the function of this key enzyme in disease contexts.

    2 mg
    $30.00
    5 mg
    $45.00
    All 6 sizes
  • CYP11B2-IN-2
    Cat. No.
    A69957

    CYP11B2-IN-2

    CYP11B2-IN-2 is a potent inhibitor of the aldosterone synthase enzyme CYP11B2, exhibiting an IC50 value of 0.3 nM. This compound is labeled with 18F, enabling its application as a positron emission tomography (PET) tracer for the diagnosis of primary aldosteronism. Its high specificity and efficacy make it a valuable tool for research in endocrine disorders and adrenal function.

    25 mg
    $1,275.00
    50 mg
    $1,625.00
    All 3 sizes
  • 10-Hydroxywarfarin
    Cat. No.
    A69958

    10-Hydroxywarfarin

    10-Hydroxywarfarin is a potent inhibitor of CYP2C9 and vitamin K epoxide reductase complex 1 (VKOR), exhibiting IC50 values of 1.6 µM and 80 ng/mL, respectively. This compound serves as a valuable tool in pharmacological research, particularly in studies related to anticoagulation therapies and vitamin K metabolism. Its role in influencing coagulation pathways makes it relevant for investigations into therapeutic strategies for thrombosis and related disorders.

    0.5 mg
    $120.00
    1 mg
    $275.00
    All 2 sizes
  • (E/Z)-DMU2139
    Cat. No.
    A69967

    (E/Z)-DMU2139

    (E/Z)-DMU2139 is a potent and selective inhibitor of CYP1B1, exhibiting an IC50 value of 4 nM. This compound serves as a valuable tool for investigating the role of CYP1B1 in various biological processes and disease models. Its specificity and efficacy make it suitable for research aimed at understanding the mechanisms underlying CYP1B1-related pathways and the development of targeted therapies.

    1 mg
    $25.00
    5 mg
    $60.00
    All 7 sizes
  • Cloperidone
    Cat. No.
    A69981

    Cloperidone

    Cloperidone is an inhibitor of cytochrome P450 2C9 (CYP2C9), demonstrating an IC50 of 17.7 μM. This compound has shown cytotoxic effects in HepG2 cells expressing CYP2C9, with a survival rate of 60% at a concentration of 10 μM. Cloperidone is valuable for studies investigating CYP2C9-related metabolic pathways and the effects of its inhibition in cellular models.

    25 mg
    $1,275.00
    50 mg
    $1,625.00
    All 3 sizes
  • 4-Phenyl-1,2,3-thiadiazole
    Cat. No.
    A69987

    4-Phenyl-1,2,3-thiadiazole

    4-Phenyl-1,2,3-thiadiazole is an inhibitor of cytochrome P450 enzymes CYP2B4 and CYP2E1. This compound effectively obstructs the oxidation of 1-phenylethanol to acetophenone, making it valuable for studies related to drug metabolism and enzymatic activity. Its ability to selectively inhibit these enzymes positions it as a significant tool for research in pharmacology and toxicology.

    10 mg
    $30.00
    50 mg
    $55.00
    All 5 sizes

Items 201-225 of 231

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