2. Signaling Pathways
  3. Vitamin D Related/Nuclear Receptor
  4. Estrogen Receptor/ERR
  5. ERα Isoform
  6. ERα Antagonist

ERα Antagonist

ERα Antagonists (10):

Cat. No. Product Name Effect Purity
  • HY-133017
    Amcenestrant
    		Antagonist 99.79%
    SAR439859 (compound 43d) is an orally active, nonsteroidal and selective estrogen receptor degrader (SERD). SAR439859 is a potent ER antagonist and has ER degrading activity with an EC50 of 0.2 nM for ERα degradation. SAR439859 demonstrates robust antitumor efficacy and limited cross-resistance in ER+ breast cancer.
  • HY-145341
    GNE-149
    		Antagonist 99.66%
    GNE-149 is an orally bioavailable full antagonist of estrogen receptor α (ERα; IC50=0.053 nM). GNE-149 is a selective estrogen receptor degrader (SERD). GNE-149 can be used for the research of breast cancer.
  • HY-16023A
    Acolbifene
    		Antagonist 99.52%
    Acolbifene (EM-652), the active metabolite of EM800, is an orally active pure antiestrogen and selective estrogen receptor antagonist. Acolbifene (EM-652) inhibits estradiol (E2)-induced transcriptional activity of ERα (IC50 = 2 nM) and ERβ (IC50 = 0.4 nM). Acolbifene (EM-652) possesses potent and pure anticarcinogenic properties.
  • HY-16023
    Acolbifene hydrochloride
    		Antagonist 99.00%
    Acolbifene (EM-652) hydrochloride, an active metabolite of EM800, is an orally active, cancer-preventing selective estrogen receptor modulator (SERM). Acolbifene (EM-652) hydrochloride inhibits estradiol (E2)-induced transcriptional activity of ERα (IC50=2 nM) and ERβ (IC50=0.4 nM). Acolbifene (EM-652) hydrochloride exerts a potent and pure antiestrogenic action in the mammary gland and uterus. Anticarcinogenic properties.
  • HY-150693
    Estrogen receptor β antagonist 2
    		Antagonist 98.39%
    Estrogen receptor β antagonist 2 is a potent and selective estrogen receptor β (ERβ) antagonist with IC50s of 109.10, 0.63 µM for Erα and Erβ, respectively.
  • HY-103457
    Y134
    		Antagonist 98.34%
    Y134 is a selective and orally active oestrogen receptor (ER) modulator (SERM), exhibits potent antagonist activity at ERα and ERβ. Y134 shows 121.1-fold selectivity for ERα (Ki=0.09 nM) over ERβ (Ki=11.31 nM). Y134 inhibits oestrogen-stimulated proliferation of ER-positive human breast cancer cells.
  • HY-103451
    (R,R)-THC
    		Antagonist ≥99.0%
    (R,R)-THC is an ERα agonist and an ERβ antagonist, with Kis of 9.0 nM and 3.6 nM for ERα and ERβ, respectively. (R,R)-THC has higher relative binding affinity for ERβ than ERα with the values of 25 and 3.6.
  • HY-114411
    ERRγ inverse agonist 1
    		Antagonist
    ERRγ Inverse Agonist 1 (Compound 12) is a potent, selective and orally bioavailable Estrogen-related Receptor grammar (ERRγ) inverse agonist, with an IC50 of 40 nM.
  • HY-146267
    ERα degrader 5
    		Antagonist
    ERα degrader 5 (Compound 40) is a selective, orally bioavailable estrogen receptor (ER) degrader (SERD) with an EC50 of 1.1 nM against ERα. ERα degrader 5 shows antitumor effect in vivo.
  • HY-144733
    ERα antagonist 1
    		Antagonist
    ERα antagonist 1 (Compound 19d) is a potent, selective, covalent estrogen receptor α (ERα) antagonist. ERα antagonist 1 induces apoptosis and cell cycle G0/G1 phase arrest in MCF-7 cells.