Chemical Formula: C18H22O3
Chemical Formula C18H22O3
Found 73 metabolite its formula value is C18H22O3
16a-Hydroxyestrone
16a-Hydroxyestrone or 16alpha-hydroxyestrone (16α-OH-E1 or 16a OHE1), or hydroxyestrone, is an endogenous steroidal estrogen and a major metabolite of estrone and estradiol. 16a-hydroxyestrone belongs to the class of organic compounds known as estrogens and derivatives. These are steroids with a structure containing a 3-hydroxylated estrane. Thus, 16a-hydroxyestrone is considered to be a steroid molecule. 16a-hydroxyestrone is found in all vertebrates. Vertebrates, especially mammals, metabolizes estrogen into two major pathways and one minor. The two major pathways lead to 2-hydroxyestrone and 16a-hydroxyestrone (2-OHE1 and 16a OHE1 respectively). The minor pathway leads to 4-hydroxyestrone (4-OHE1). 2a-hydroxyestrone is considered to be the good metabolite (PMID: 8943806) as 2-hydroxyestrone does not stimulate cell growth and it blocks the action of stronger estrogens that may be carcinogenic. 16a-Hydroxyestrone, on the other hand, has a significantly stronger estrogenic activity, and studies show that it may increase the risk of breast cancer. The binding of 16a-hydroxyestrone to the estrogen receptor is reported to be covalent and irreversible (PMID: 3186693). A low urinary ratio of 2-hydroxyestrone to 16-alpha-hydroxyestrone is a strong predictor of breast cancer risk among women (PMID: 19502596). Estrone (also oestrone) is an estrogenic hormone secreted by the ovary. Its molecular formula is C18H22O2. estrone has a melting point of 254.5 degrees Celsius. estrone is one of the three estrogens, which also include estriol and estradiol. estrone is the least prevalent of the three hormones, estradiol being prevalent almost always in a female body, estriol being prevalent primarily during pregnancy. estrone sulfate is relevant to health and disease due to its conversion to estrone sulfate, a long-lived derivative of estrone. estrone sulfate acts as a pool of estrone which can be converted as needed to the more active estradiol. [HMDB] C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones
2-Hydroxyestrone
2-Hydroxyestrone (2-OHE1), also known as estra-1,3,5(10)-trien-2,3-diol-17-one, is an endogenous, naturally occurring catechol estrogen and a major metabolite of estrone and estradiol. 2-Hydroxyestrone belongs to the class of organic compounds known as estrogens and derivatives. These are steroids with a structure containing a 3-hydroxylated estrane. Thus, 2-Hydroxyestrone is considered to be a steroid molecule. It is formed irreversibly from estrone in the liver and to a lesser extent in other tissues via 2-hydroxylation mediated by cytochrome P450 enzymes, mainly the CYP3A and CYP1A subfamilies. 2-OHE1 is the most abundant catechol estrogen in the body. 2-Hydroxyestrone is found in all vertebrates. Vertebrates, especially mammals, metabolizes estrogen into two major pathways and one minor. The two major pathways lead to 2-hydroxyestrone and 16a-hydroxyestrone (2-OHE1 and 16a OHE1, respectively). The minor pathway leads to 4-hydroxyestrone (4-OHE1). 2a-hydroxyestrone is considered to be the good steroid metabolite (PMID: 8943806) as 2-hydroxyestrone does not stimulate cell growth and it blocks the action of stronger estrogens that may be carcinogenic. 2-hydroxyestrone is not significantly uterotrophic, whereas other hydroxylated estrogen metabolites including 2-hydroxyestradiol, 16a-hydroxyestrone, estriol, 4-hydroxyestradiol, and 4-hydroxyestrone all are. A low urinary ratio of 2-hydroxyestrone to 16-alpha-hydroxyestrone is a strong predictor of breast cancer risk among women (PMID: 19502596). Estrone (also oestrone) is an estrogenic hormone secreted by the ovary. Its molecular formula is C18H22O2. estrone has a melting point of 254.5 degrees Celsius. estrone is one of the three estrogens, which also include estriol and estradiol. estrone is the least prevalent of the three hormones, estradiol being prevalent almost always in a female body, estriol being prevalent primarily during pregnancy. estrone sulfate is relevant to health and disease due to its conversion to estrone sulfate, a long-lived derivative of estrone. estrone sulfate acts as a pool of estrone which can be converted as needed to the more active estradiol. [HMDB] C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones D020011 - Protective Agents > D016588 - Anticarcinogenic Agents D000970 - Antineoplastic Agents
METHALLENESTRIL
G - Genito urinary system and sex hormones > G03 - Sex hormones and modulators of the genital system > G03C - Estrogens > G03CC - Estrogens, combinations with other drugs G - Genito urinary system and sex hormones > G03 - Sex hormones and modulators of the genital system > G03C - Estrogens > G03CB - Synthetic estrogens, plain C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen
16-Ketoestradiol
16-Ketoestradiol is found in the estrogen patch. The estrogen patch is a delivery system for estradiol used as hormone replacement therapy to treat the symptoms of menopause, such as hot flashes and vaginal dryness, and to prevent osteoporosis. Originally marketed as Vivelle (Novartis), it was discontinued in 2003 and reintroduced in a smaller form as Vivelle-Dot. Although the estrogen is given transdermally rather than in the standard oral tablets, the estrogen patch carries similar risks and benefits as more conventional forms of estrogen-only hormone replacement therapy. [HMDB] 16-Ketoestradiol is found in the estrogen patch. The estrogen patch is a delivery system for estradiol used as hormone replacement therapy to treat the symptoms of menopause, such as hot flashes and vaginal dryness, and to prevent osteoporosis. Originally marketed as Vivelle (Novartis), it was discontinued in 2003 and reintroduced in a smaller form as Vivelle-Dot. Although the estrogen is given transdermally rather than in the standard oral tablets, the estrogen patch carries similar risks and benefits as more conventional forms of estrogen-only hormone replacement therapy. D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones
16b-Hydroxyestrone
16b-Hydroxyestrone 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. 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. [HMDB] C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones
4-Hydroxyestrone
4-Hydroxyestrone is metabolite originating from 17beta-estradiol, and is reported as carcinogenic and have ability to initiate cancer. D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones A human metabolite taken as a putative food compound of mammalian origin [HMDB] 4-Hydroxyestrone (4-OHE1), an estrone metabolite, has strong neuroprotective effect against oxidative neurotoxicity. 4-Hydroxyestrone increases cytoplasmic translocation of p53 resulting from SIRT1-mediated deacetylation of p53. 4-Hydroxyestrone has little estrogenic activity[1].
17beta-Estradiol-2,3-quinone
This compound belongs to the family of Ketosteroids. These are steroid derivatives.
17beta-Estradiol-3,4-quinone
This compound belongs to the family of Ketosteroids. These are steroid derivatives comprising a ketone group attached to steroid skeleton.
1,3,5[10]-Estratriene-3,4-diol-17-one
6-Ketoestradiol
Methyl 2,2-dimethyl-8-(3-methyl-2-butenyl)-2H-1-chromene-6-carboxylate
1-[8-(3-Hydroxy-3-methyl-1-butenyl)-2,2-dimethyl-2H-1-benzopyran-6-yl]-ethanon
(+)-18-hydroxyestrone|10-Hydroxy-oestron|3,18-dihydroxy-estra-1,3,5(10)-trien-17-one|3,18-Dihydroxy-oestra-1,3,5(10)-trien-17-on
3beta,12-dihydroxy-13-methyl-5,8,11,13-podocarpatetraen-7-one|3??,12-Dihydroxy-13-methyl-5,8,11,13-podocarpatetraen-7-one
2-Methylpropanoyl-(E,E)-1-Hydroxy-6,12-tetradecadiene-8,10-diyn-3-one
Me ester-(all-E)-3-Hydroxy-7,9,15-heptadecatriene-11,13-diynoic acid
5-acetyl-2-(2-hydroxyisopropyl)-7-(3,3-dimethylallyl)-benzofuran|5-Acetyl-2-(2-hydroxyisopropyl)-7-prenylbenzofuran
(4aRS,9SR,10aSR)-1,3,4,9,10,10a-hexahydro-6-hydroxy-1,1-dimethyl-2H-9,4a-(epoxymethano)phenanthrene-7-carboxaldehyde|przewalskin F
Epi-cryptoacetalide
Epi-Cryptoacetalide is a natural product found in Salvia miltiorrhiza with data available.
5alpha,6alpha-epoxy-12-hydroxy-13-methyl-8,11,13-podocarpatrien-7-one|crossogumerin B
14-hydroxy-13-methoxy-1,8,11,13-podocarpatetraen-3-one
(E)-15,16-dihydrominquartynoic acid|(S)-(E)-15,16-dihydrominquartynoic acid|(S)-17-hydroxy-15E-octadecen-9,11,13-triynoic acid
7-((E)-3,7-dimethylocta-2,6-dienyl)-5-hydroxybenzofuran-2(3H)-one|7-(3,7-dimethylocta-2,6-dienyl)-5-hydroxy-3H-benzofuran-2-one|denudalide|lettowienolide
3-oxo-16,19-norisopimara-4,6-dien-8alpha,15alpha-olide|trogopteroid A
1-[5-acetyl-2-hydroxy-3-(3-methyl-2-butenyl)phenyl]-3-methyl-2-buten-1-one
Lettowienolide
Lettowienolide is a natural product found in Lettowianthus stellatus and Magnolia denudata with data available.
2-hydroxyestrone
C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones A 2-hydroxy steroid that is estrone substituted by a hydroxy group at position 2. D020011 - Protective Agents > D016588 - Anticarcinogenic Agents D000970 - Antineoplastic Agents
4-hydroxyestrone
C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones A 4-hydroxy steroid that is estrone substituted by a hydroxy group at position 4. 4-Hydroxyestrone (4-OHE1), an estrone metabolite, has strong neuroprotective effect against oxidative neurotoxicity. 4-Hydroxyestrone increases cytoplasmic translocation of p53 resulting from SIRT1-mediated deacetylation of p53. 4-Hydroxyestrone has little estrogenic activity[1].
ST 18:4;O3
D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen D020011 - Protective Agents > D016588 - Anticarcinogenic Agents D000970 - Antineoplastic Agents 4-Hydroxyestrone (4-OHE1), an estrone metabolite, has strong neuroprotective effect against oxidative neurotoxicity. 4-Hydroxyestrone increases cytoplasmic translocation of p53 resulting from SIRT1-mediated deacetylation of p53. 4-Hydroxyestrone has little estrogenic activity[1].
6Beta-hydroxyestrone
A 3-hydroxy steroid that is estrone substituted by a beta-hydroxy group at position 6.
4-[2-(4-hydroxyphenyl)propan-2-yl]phenol,2-methyloxirane
15alpha-Hydroxyestrone
A 17-oxo steroid that is estrone substituted by an alpha-hydroxy group at position 15.
[R,(+)]-beta-Ethyl-alpha,alpha-dimethyl-6-methoxy-2-naphthalenepropionic acid
6alpha-Hydroxyestrone
A 6alpha-hydroxy steroid that is estrone substituted by an alpha-hydroxy group at position 6. D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones
Estrololactone
D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones
3beta,12-Dihydroxy-13-methyl-5,8,11,13-podocarpatetraene-7-one
A diterpenoid that is podocarpa-5,8,11,13-tetraen-7-one substituted by hydroxy groups at positions 3 and 12 and a methyl group at position 13 (the 3beta stereoisomer). Isolated from Securinega suffruticosa, it exhibits antineoplastic activity.
1-Methoxy-4-[1-[1-(4-methoxyphenyl)ethoxy]ethyl]benzene
16α-Hydroxyestrone
C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones The 16alpha-hydroxy derivative of estrone; a minor estrogen metabolite.
16beta-Hydroxyestrone
A 3-hydroxy steroid that is estrone substituted by a beta-hydroxy group at position 16.