estradiol

Estradiol (E2) is a naturally occurring steroidal sex hormone that is essential for female fertility and maintenance of secondary sexual characteristics. Estradiol upregulates IL-6 expression through estrogen receptor beta (ERβ).

Alpha-Estradiol (Epiestradiol) is an estrogen that inhibits 5alpha-reductase and has potential in the study of androgenetic alopecia.

Ethynyl estradiol is a semisynthetic alkylated ESTRADIOL with a 17-alpha-ethinyl substitution. It has high estrogenic potency when administered orally, and is often used as the estrogenic component in ORAL CONTRACEPTIVES.

β-Estradiol 17-acetate (1,3,5(10)-Estratriene-3,17β-diol 17-acetate) is a metabolite of estradiol.

Estradiol 3-sulfate 17β-Glucuronide potassium salt (Estradiol 3-sulfate 17-glucuronide potassium) is a naturally occurring estrogen that competitively inhibits MRP-mediated LTC transporter and can be used to study metabolic diseases.

4-Methoxy-17-estradiol is one of the estrogen metabolites and a methylation metabolite of 4-hydroxyestradiol.

2-Methoxyestradiol (2-ME2) is an orally bioavailable estradiol metabolite with potential antineoplastic activity. 2-Methoxyestradiol inhibits angiogenesis by reducing endothelial cell proliferation and inducing endothelial cell apoptosis. This agent also inhibits tumor cell growth by binding to tubulin, resulting in antimitotic activity, and by inducing caspase activation, resulting in cell cycle arrest in the G2 phase, DNA fragmentation, and apoptosis.

Estrone (Aquacrine) is an aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone, a major mammalian estrogen. It is converted from ANDROSTENEDIONE directly, or from TESTOSTERONE via ESTRADIOL. In humans, it is produced primarily by the cyclic ovaries, PLACENTA, and the ADIPOSE TISSUE of men and postmenopausal women.

Estriol (Oestriol) is a hydroxylated metabolite of ESTRADIOL or ESTRONE that has a hydroxyl group at C3, 16-alpha, and 17-beta position. Estriol is a major urinary estrogen. During PREGNANCY, a large amount of estriol is produced by the PLACENTA.

Oestradiol is a useful organic compound for research related to life sciences and the catalog number is T131627.

Norgestimate metabolite Norelgestromin (17-Deacylnorgestimate) is one of the active metabolites of norgestimate.It is a steroidal progestin used in contraceptive patches, where it is combined with the estrogen ethinyl estradiol.

2-Methoxyestrone is a methoxylated catechol estrogen and the principal metabolite of 2-hydroxyestrone [a nonuterotropic metabolite of estradiol].

Stephacidin B is a fungal metabolite that has been found inA. ochraceus.1Dimeric stephacidin B is rapidly converted to a monomer, avrainvillamide ,in vitro.2Stephacidin B is cytotoxic to a variety of cancer cells, including testosterone-independent PC3 and -sensitive LNCaP prostate cancer cells (IC50s = 0.37 and 0.06 μM, respectively) and estradiol-independent SK-BR-3 and -sensitive MCF-7 breast cancer cells (IC50s = 0.32 and 0.27 μM, respectively).1It induces apoptosis in HepG2 and Huh7 hepatocellular carcinoma cells when used at a concentration of 4 μM.3 1.Qian-Cutrone, J., Huang, S., Shu, Y.-Z., et al.Stephacidin A and B: Two structurally novel, selective inhibitors of the testosterone-dependent prostate LNCaP cellsJ. Am. Chem. Soc.124(49)14556-14557(2002) 2.Wulff, J.E., Herzon, S.B., Siegrist, R., et al.Evidence for the rapid conversion of stephacidin B into the electrophilic monomer avrainvillamide in cell cultureJ. Am. Chem. Soc.129(16)4898-4899(2007) 3.Hu, L., Zhang, T., Liu, D., et al.Notoamide-type alkaloid induced apoptosis and autophagy via a P38/JNK signaling pathway in hepatocellular carcinoma cellsRSC Adv.9(34)19855-19868(2019)

1. Dalbergin (6-Hydroxy-7-Methoxy-4-Phenylcoumarin) exhibits similar bone conserving effect against bone-loss as estradiol treatment, it as a therapeutic candidate against postmenopausal osteoporosis. 2. Dalbergin prevents some effects of photoaging and maintain skin integrity by regulating the degradation of the extracellular matrix proteins.