2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. Cytochrome P450
  5. Aromatase/CYP19A1 Isoform

Aromatase/CYP19A1

Aromatase (estrogen synthetase, CYP19A1) is a unique cytochrome P450 that catalyzes the removal of the 19-methyl group and aromatization of the A-ring of androgens for the synthesis of estrogens. All human estrogens are synthesized via this enzymatic aromatization pathway. Aromatase is most widely known for its roles in reproduction and reproductive system diseases, and as a target for inhibitor therapy in estrogen-sensitive diseases including cancer, endometriosis, and leiomyoma.

The selective inhibition of estrogen production by aromatase inhibitors is an efficient strategy for breast cancer treatment. These compounds are classified as irreversible inhibitors of aromatase (type I), and comprise steroidal compounds. Reversible inhibitors of aromatase, which comprises non-steroidal compounds are type II aromatase inhibitors. Second and third generation aromatase inhibitors are considerably more potent and more specific in their ability to inhibit aromatase, as compared with first generation compounds (aminoglutethimide).

Aromatase/CYP19A1 Related Products (38):

Cat. No. Product Name Effect Purity
  • HY-14248
    Letrozole
    		Inhibitor 99.95%
    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-N0292
    Oleuropein
    		Inhibitor 99.05%
    Oleuropein, found in olive leaves and oil, exerts antioxidant, anti-inflammatory and anti-atherogenic effects through direct inhibition of PPARγ transcriptional activity. Oleuropein induces apoptosis in breast cancer cells via the p53-dependent pathway and through the regulation of Bax and Bcl2 genes. Oleuropein also inhibits aromatase.
  • HY-14274
    Anastrozole
    		Inhibitor 99.99%
    Anastrozole is a potent, highly selective aromatase inhibitor, which inhibits human placental aromatase with an IC50 of 15 nM.
  • HY-13632
    Exemestane
    		Inhibitor 99.83%
    Exemestane (FCE 24304) is a selective, irreversible and orally active steroidal aromatase inhibitor with IC50s of 30 nM and 40 nM for human placental and rat ovarian aromatase, respectively. Exemestane can be used for hormone-dependent breast cancer research.
  • HY-125833
    Alpha-Naphthoflavone
    		Inhibitor 98.54%
    Alpha-Naphthoflavone is an orally active flavonoid that is a potent, competitive inhibitor of aromatase< b>aromatase. < b > IC < sub > 50 < / sub > < / b > and < b > K < sub > I < / sub > < / b > value were 0.5 and 0.2 microns. Alpha-Naphthoflavone can inhibit cell proliferation and induce apoptosis.
  • HY-169408
    EGFR-IN-137
    		Inhibitor
    EGFR-IN-137 (Compound 4c) is an inhibitor for aromatase and EGFR with IC50s of 1.67 μg/mL and 0.08 μg/mL. EGFR-IN-137 inhibits the proliferation of cancer cell MCF-7 and MDA-MB-231 with IC50s of 1.62 µM and 4.14 µM. EGFR-IN-137 arrests the cell cycle at G0/G1 phase in MDA-MB-231, and induces apoptosis through caspase-dependent pathway.
  • HY-18719E
    Endoxifen
    		Inhibitor 99.42%
    Endoxifen is a key active metabolite of tamoxifen (TAM) with higher affinity and specificity to estrogen receptor that also inhibits aromatase activity. Endoxifen has the potential for breast cancer study.
  • HY-18719B
    Endoxifen hydrochloride
    		Inhibitor 98.75%
    Endoxifen hydrochloride is a key active metabolite of Tamoxifen (TAM) with higher affinity and specificity to estrogen receptor that also inhibits aromatase activity. Endoxifen hydrochloride has the potential for breast cancer study.
  • HY-14247
    Fadrozole hydrochloride
    		Inhibitor 99.91%
    Fadrozole hydrochloride (CGS 16949A) is a potent, selective and nonsteroidal inhibitor of aromatase with an IC50 of 6.4 nM.
  • HY-14247A
    Fadrozole
    		Inhibitor 99.78%
    Fadrozole (CGS 16949A free base) is a potent, selective and nonsteroidal inhibitor of aromatase with an IC50 of 6.4 nM.
  • HY-N7128
    Flavanone
    		Inhibitor 99.84%
    Flavanone is a naturally occurring flavone. Flavanone has inhibitory activity for human estrogen synthetase (aromatase). Flavanone is the inhibitor for ERK/p38/NF-κB signaling pathway. Flavanone exhibits oral activity and antitumor efficacy.
  • HY-B0237
    Aminoglutethimide
    		Inhibitor 98.79%
    Aminoglutethimide is an aromatase inhibitor with IC50 of 10 μM.
  • HY-N7005
    Clitorin
    		Inhibitor 98.06%
    Clitorin is an orally active flavonoid compound that can be isolated from Carica papaya. Clitorin is an inhibitor of EGFR (IC50: 89.58 nM) and aromatase (IC50: 77.41 nM). Clitorin has antioxidant and anti-tumor activities. In the DPPH and ABTS radical scavenging assays, Clitorin has IC50 values of 91.96 ppm and 250.45 ppm, respectively. In addition, Clitorin can regulate lipogenesis and fatty acid oxidation and can be used in the research of non-alcoholic fatty liver disease.
  • HY-W392925
    (R)-(+)-Aminoglutethimide
    		Inhibitor
    (R)-(+)-Aminoglutethimide is a potent and orally active aromatase inhibitor. (R)-(+)-Aminoglutethimide has the potential for the research of breast cancer.
  • HY-150775
    CYP19A1-IN-2
    		Inhibitor 98.88%
    CYP19A1-IN-2 (Compound 13h) is a nonsteroidal aromatase (CYP19A1) inhibitor (IC50=0.09 nM). CYP19A1-IN-2 has potential for breast cancer research. CYP19A1-IN-2 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
  • HY-13632R
    Exemestane (Standard)
    		Inhibitor 99.63%
    Exemestane (Standard) is the analytical standard of Exemestane. This product is intended for research and analytical applications. Exemestane (FCE 24304) is a selective, irreversible and orally active steroidal aromatase inhibitor with IC50s of 30 nM and 40 nM for human placental and rat ovarian aromatase, respectively. Exemestane can be used for hormone-dependent breast cancer research.
  • HY-14248S
    Letrozole-d4
    		99.82%
    Letrozole-d4 (CGS 20267-d4) is the deuterium labeled Letrozole. 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[1][2][3].
  • HY-N9551
    Eriodictyol chalcone
    		Inhibitor
    Eriodictyol chalcone possesses both anti-aromatase and an anti-17β-HSD activity.
  • HY-105184
    YM511
    		Inhibitor 99.73%
    YM511 is a highly specific non-steroidal aromatase inhibitor. YM511 inhibits aromatase activities in microsomes from rat ovary and human placenta competitively (IC50s of 0.4 and 0.12 nM, respectively). YM511 slightly inhibits production of other steroid hormones. YM511 has the potential for suppressing estrogen-dependent action research without affecting serum levels of other steroid hormones.
  • HY-19599
    Vorozole
    		Inhibitor
    Vorozole is a potent and selective, orally active non-steroidal aromatase inhibitor. Vorozole shows antitumor activity in vivo. Vorozole has the potential for the research of mammary cancer.