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Details

Stereochemistry ABSOLUTE
Molecular Formula C29H34O4
Molecular Weight 446.5779
Optical Activity UNSPECIFIED
Defined Stereocenters 5 / 5
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ESTRA-1,3,5(10)-TRIENE-3,17-DIOL (17.BETA.)-, 3-BENZOATE 17-BUTANOATE

SMILES

[H][C@@]12CC[C@H](OC(=O)CCC)[C@@]1(C)CC[C@]3([H])C4=CC=C(OC(=O)C5=CC=CC=C5)C=C4CC[C@@]23[H]

InChI

InChIKey=MKYFGNOOEKZNPW-ZRJUGLEFSA-N
InChI=1S/C29H34O4/c1-3-7-27(30)33-26-15-14-25-24-12-10-20-18-21(32-28(31)19-8-5-4-6-9-19)11-13-22(20)23(24)16-17-29(25,26)2/h4-6,8-9,11,13,18,23-26H,3,7,10,12,14-17H2,1-2H3/t23-,24-,25+,26+,29+/m1/s1

HIDE SMILES / InChI

Molecular Formula C29H34O4
Molecular Weight 446.5779
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 5 / 5
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

Estradiol an aromatized C18 steroid with hydroxyl group at 3-beta- and 17-beta-position. Estradiol-17-beta is the most potent form of mammalian estrogenic steroids. In humans, it is produced primarily by the cyclic ovaries and the placenta. It is also produced by the adipose tissue of men and postmenopausal women. The 17-alpha-isomer of estradiol binds weakly to estrogen receptors (receptors, estrogen) and exhibits little estrogenic activity in estrogen-responsive tissues. Estradiol enters target cells freely (e.g., female organs, breasts, hypothalamus, pituitary) and interacts with a target cell receptor. When the estrogen receptor has bound its ligand it can enter the nucleus of the target cell, and regulate gene transcription which leads to formation of messenger RNA. The mRNA interacts with ribosomes to produce specific proteins that express the effect of estradiol upon the target cell. Estradiol is used for the treatment of urogenital symptoms associated with post-menopausal atrophy of the vagina (such as dryness, burning, pruritus and dyspareunia) and/or the lower urinary tract (urinary urgency and dysuria). Estradiol is marketed under the brand name Climara (among others), indicated for: the treatment of moderate to severe vasomotor symptoms due to menopause, treatment of symptoms of vulvar and vaginal atrophy due to menopause, treatment of hypoestrogenism due to hypogonadism, castration or primary ovarian failure and prevention of postmenopausal osteoporosis.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.0084 nM [EC50]
1.4 nM [EC50]
19.1 nM [IC50]
0.13 nM [Ki]
0.09 nM [Kd]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
CLIMARA
Preventing
CLIMARA
Primary
CLIMARA

Cmax

ValueDoseCo-administeredAnalytePopulation
14.7 pg/mL
0.25 mg 1 times / day steady-state, topical
ESTRADIOL plasma
Homo sapiens
92 pg/mL
0.05 mg 1 times / day multiple, topical
ESTRADIOL plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
236 pg × h/mL
0.25 mg 1 times / day steady-state, topical
ESTRADIOL plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
10 h
0.25 mg 1 times / day steady-state, topical
ESTRADIOL plasma
Homo sapiens
1.75 h
0.05 mg 1 times / day multiple, topical
ESTRADIOL plasma
Homo sapiens

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
yes
yes

Drug as victim

TargetModalityActivityMetaboliteClinical evidence
minor
minor
minor
minor
minor
minor
no
no
no
no
no
no
no
no
no
yes [Km 7 uM]
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes

Sourcing

Vendor/AggregatorIDURL

PubMed

TitleDatePubMed
Effect of estradiol benzoate on the proliferation of osteogenic cells in fetal rat fibulae cultured in vitro.
1978 Mar
An increase of pituitary 3', 5' cyclic adenosine monophosphate produced by estradiol benzoate in vitro: possible implication of this increase in the secretion of luteinizing hormone.
1978 May
[The effect of adrenaline and 17beta-estradiol sulfate on transmembrane potentials of guinea pig cardiomyocytes].
1996 Dec
Comparison of the ligand binding specificity and transcript tissue distribution of estrogen receptors alpha and beta.
1997 Mar
Interaction of estrogenic chemicals and phytoestrogens with estrogen receptor beta.
1998 Oct
Estrogen and aryl hydrocarbon receptor expression and crosstalk in human Ishikawa endometrial cancer cells.
2000 Apr
Effect of chlorinated hydrocarbons on expression of cytochrome P450 1A1, 1A2 and 1B1 and 2- and 4-hydroxylation of 17beta-estradiol in female Sprague-Dawley rats.
2000 Aug
WISP-2 as a novel estrogen-responsive gene in human breast cancer cells.
2000 Aug 18
Involvement of cyclooxygenase 2 in the protective effect of 17beta-estradiol on hypercholesterolemic rabbit aorta.
2000 Aug 28
Indole-3-carbinol is a negative regulator of estrogen receptor-alpha signaling in human tumor cells.
2000 Dec
Atheroprotective effect of estriol and estrone sulfate on human vascular smooth muscle cells.
2000 Jan-Feb
Estradiol and pesticide methoxychlor do not exhibit additivity or synergism in the reproductive tract of adult ovariectomized mice.
2000 Jul 28
Crosstalk between estrogen receptor alpha and the aryl hydrocarbon receptor in breast cancer cells involves unidirectional activation of proteasomes.
2000 Jul 28
Six high-priority organochlorine pesticides, either singly or in combination, are nonestrogenic in transfected HeLa cells.
2000 Mar-Apr
Estradiol acts as a germ cell survival factor in the human testis in vitro.
2000 May
Assaying estrogenicity by quantitating the expression levels of endogenous estrogen-regulated genes.
2000 May
Estradiol enhances the resistance of LDL to oxidation by stabilizing apoB-100 conformation.
2000 Nov 14
Differential effects of xenoestrogens on coactivator recruitment by estrogen receptor (ER) alpha and ERbeta.
2000 Nov 17
Relative binding affinity does not predict biological response to xenoestrogens in rat endometrial adenocarcinoma cells.
2000 Oct
Resveratrol acts as a mixed agonist/antagonist for estrogen receptors alpha and beta.
2000 Oct
Effects of arsenite on estrogen receptor-alpha expression and activity in MCF-7 breast cancer cells.
2000 Oct
Antiestrogenic effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin in mouse uterus: critical role of the aryl hydrocarbon receptor in stromal tissue.
2000 Oct
Constitutive expression of the steroid sulfatase gene supports the growth of MCF-7 human breast cancer cells in vitro and in vivo.
2001 Apr
Vitellogenin-induced pathology in male summer flounder (Paralichthys dentatus).
2001 Feb
Use of salivary biomarkers in biobehavioral research: cotton-based sample collection methods can interfere with salivary immunoassay results.
2001 Feb
Estrogen induces the Akt-dependent activation of endothelial nitric-oxide synthase in vascular endothelial cells.
2001 Feb 2
Female steroid hormones modulate receptors for nerve growth factor in rat dorsal root ganglia.
2001 Jan
Regulation and role of vascular endothelial growth factor in the corpus luteum during mid-pregnancy in rats.
2001 Jan
Regulation of progesterone receptors and decidualization in uterine stroma of the estrogen receptor-alpha knockout mouse.
2001 Jan
Follicle selection in cattle: role of luteinizing hormone.
2001 Jan
Changes in follicle-stimulating hormone and follicle populations during the ovarian cycle of the common marmoset.
2001 Jan
Comparison of histological compositions and apoptosis in canine spontaneous benign prostatic hyperplasia treated with androgen suppressive agents chlormadinone acetate and finasteride.
2001 Jan
Metabolism of estradiol, ethynylestradiol, and moxestrol in rat uterus, vagina, and aorta: influence of sex steroid treatment.
2001 Jan
Sex steroid hormones enhance immune function in male and female Siberian hamsters.
2001 Jan
Stimulatory effect of clofibrate and gemfibrozil administration on the formation of fatty acid esters of estradiol by rat liver microsomes.
2001 Jan
Influence of gender and sex hormones on nicotine acute pharmacological effects in mice.
2001 Jan
Heat-shock factor-1, steroid hormones, and regulation of heat-shock protein expression in the heart.
2001 Jan
Gender-related distinctions in protein kinase C activity in rat vascular smooth muscle.
2001 Jan
Neuroprotection by estradiol.
2001 Jan
Affinity labeling of rat glutathione S-transferase isozyme 1-1 by 17beta -iodoacetoxy-estradiol-3-sulfate.
2001 Jan 19
Reduction of gamma-aminobutyric acid-ergic neurotransmission as a putative mechanism of radiation induced activation of the gonadotropin releasing-hormone-pulse generator leading to precocious puberty in female rats.
2001 Jan 5
Hormone binding by protein disulfide isomerase, a high capacity hormone reservoir of the endoplasmic reticulum.
2001 Jan 5
Acquisition of Lubrol insolubility, a common step for growth hormone and prolactin in the secretory pathway of neuroendocrine cells.
2001 Jan 5
In vivo regulation of syndecan-3 expression in the rat uterus by 17 beta-estradiol.
2001 Jan 5
Glutathione stimulates sulfated estrogen transport by multidrug resistance protein 1.
2001 Mar 2
Estrogen decreases osteoclast formation by down-regulating receptor activator of NF-kappa B ligand (RANKL)-induced JNK activation.
2001 Mar 23
Enhanced multispecificity of arabidopsis vacuolar multidrug resistance-associated protein-type ATP-binding cassette transporter, AtMRP2.
2001 Mar 23
The unusual binding properties of the third distinct teleost estrogen receptor subtype ERbetaa are accompanied by highly conserved amino acid changes in the ligand binding domain.
2004 Jun
Sulfonation of 17beta-estradiol and inhibition of sulfotransferase activity by polychlorobiphenylols and celecoxib in channel catfish, Ictalurus punctatus.
2007 Mar 10
Evaluation of Effects of Topical Estradiol Benzoate Application on Cutaneous Wound Healing in Ovariectomized Female Mice.
2016

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Unknown
In Vitro Use Guide
Estradiol-3-sulfate (E2SO4) infused intracerebroventricularly (icv) significantly increased plasma adrenocorticotropic hormone (ACTH) and cortisol concentrations. All minipumps in the treated fetuses were filled with E2SO4 in the vehicle (water) and minipumps in the control fetuses were filled with vehicle only. These minipumps deliver a constant infusion of 5 μL/h; the concentration of E2SO4 in infusates was therefore 8.33 μg/μL. It was concluded, that E2SO4 had complex actions on the fetal brain, which might involve deconjugation by steroid sulfatase. But that the net result of direct E2SO4 icv infusion was more complex than could be accounted for by infusion of E2 alone.
Substance Class Chemical
Record UNII
ZE4IGI4UMH
Record Status Validated (UNII)
Record Version
Name Type Language
ESTRA-1,3,5(10)-TRIENE-3,17-DIOL (17.BETA.)-, 3-BENZOATE 17-BUTANOATE
Systematic Name English
ESTRADIOL BENZOATE BUTYRATE
Common Name English
ESTRADIOL-3-BENZOATE-17-BUTYRATE
Common Name English
BETA-ESTRADIOL 3-BENZOATE 17-N-BUTYRATE
Common Name English
Code System Code Type Description
WIKIPEDIA
Estradiol_benzoate_butyrate PRIMARY
ECHA (EC/EINECS)
263-807-9 PRIMARY
CAS
63042-18-2 PRIMARY
FDA UNII
ZE4IGI4UMH PRIMARY
EPA CompTox
DTXSID20978979 PRIMARY
SMS_ID
100000184196 PRIMARY
PUBCHEM
67081 PRIMARY
Related Record Type Details
METABOLITE ACTIVE -> PRODRUG
Related Record Type Details
ACTIVE MOIETY