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Buy Estrone (E1) powder. Estrone (E1), also spelled oestrone, is a steroid, a weak estrogen, and a minor female sex hormone. It is one of three major endogenous estrogens, the others being estradiol and estriol. Estrone, as well as the other estrogens, are synthesized from cholesterol and secreted mainly from the gonads, though they can also be formed from adrenal androgens in adipose tissue. Relative to estradiol, both estrone and estriol have far weaker activity as estrogens. Estrone can be converted into estradiol, and serves mainly as a precursor or metabolic intermediate of estradiol. It is both a precursor and metabolite of estradiol. Buy Estrone (E1) powder

In addition to its role as a natural hormone, estrone has been used as a medication, for instance in menopausal hormone therapy; for information on estrone as a medication, see the estrone (medication) article. Buy Estrone (E1) powder

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What is Estrone?

Estrone (E1), also name oestrone, is a steroid, a weak estrogen, and a minor female sex hormone. It is one of three major endogenous estrogens, the others being estradiol and estriol. buy Estrone online, as well as the other estrogens, are synthesized from cholesterol and secreted mainly from the gonads, though they can also be formed from adrenal androgens in adipose tissue. Relative to estradiol, both estrone suppliers and estriol have far weaker activity as estrogens. Buy Estrone crystalline 
Estrone for sale  is a white, odorless, solid crystalline powder, with a melting point of 254.5 °C (490 °F) and a specific gravity of 1.23.[12][13] Estrone is combustible at high temperatures, with the products carbon monoxide (CO) and carbon dioxide (CO2). Buy Estrone crystalline
Estrone Chemical Profile
CAS No: 53-16-7
Formula: C18 H22 O2
Melting Point: 260˚C
Molecular Weight: 270.37
Rotation: +162˚ Diox
Estrone
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Product Description
Items
Result
Appearance
white or almost white crystalline powder
white crystalline powder STEROIDS
Identification
The IR spectrum of sample complies white that of reference standard
conforms
UV:  the minimum and maximum absorption value of test solution should be conforms to that of reference solution
conforms
Clarity of solution
Solution is clear Buy Estrone (E1) powder
conforms
Specific rotation
+158.0 to +165.0
+160.0
Loss on drying
≤0.5%
0.1%
Residue on ignition
≤0.5%
0.1%
Related substance
≤2.0%
conforms
assay
97.0-103.0%
97.8%
Residual solvents
Acetone ≤5000ppm
Not detected
Ethanol ≤5000
1317ppm
Ethyl acetate≤5000pm
Not detected
Bebzene ≤2ppm
Not detected
conclusion
Meet the above specification
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Estrone, 99+%, Thermo Scientific | Fisher Scientific
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Estradiol, Estriol, and Estrone in HRT Cream Base
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Is estradiol the most potent estrogen?
Where is estrone produced in the body?
What do high levels of estrone mean?
What is the least potent estrogen?
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Estrone: Uses, Interactions, Mechanism of Action – DrugBank
ESTRONE USP (E1) – PCCA
ESTROGEN-ONLY MENOPAUSAL THERAPY
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Detailed Product Description
CAS:53-16-7MF:C18H22O2
MW:270.37EINECS:200-164-5
Apperance:White Crystalline SolidPayment:Bitcoin
Delivery Time:Within 24h After Confirm Your PaymentExpress:UPS,TNT,DHL,EMS,HKEMS,FEDEX
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High Purity Anti Estrogen Steroids Female Hormone Powder Estrone CAS 53-16-7

Estrone

Synonyms: (8R,13S)-3-Hydroxy-13-methyl-6,7,8,9,11,12,13,14,15,16-decahydro-cyclopenta[a]phenanthren-17-one;1,3,5(10)-Oestratrien-3-ol-17-one;1,3,5-Oestratrien-3-ol-17-one;3-Hydroxy-1,3,5-(10)-oestratrien-17-one;3-Hydroxy-1,3,5(10)-oestratrien-17-one;3-hydroxy-17-keto-estra-1,3,5-triene;3-Hydroxy-17-ketoestra-1,3,5-triene;3-hydroxy-17-keto-oestra-1,3,5-triene
CAS: 53-16-7
MF: C18H22O2
MW: 270.37
EINECS: 200-164-5
Chemical Properties Crystalline Solid
Usage A metabolite of 17β-Estradiol.
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Product NameEstrone
Synonyms1,3,5(10)-Estratrien-3-ol-17-one
CAS No.53-16-7
EINECS200-164-5
Molecular FormulaC18H22O2
Molecular Weight270.37
StandardUSP/BP
AppearenceNearly white crystalline powder, soluble in alcohol, insoluble
ApplicationA metabolite of 17β-Estradiol
Estrogen.
A metabolite of 17-Estradiol
Steroids;Various Metabolites and Impurities;17-Ketosteroids;Biochemistry;Hydroxyketosteroids;Metabolites & Impurities;API;THEELIN;Metabolites & Impurities, Steroids;Hormone Drugs

Description :

Estrone is considered a weaker form of estrogen. It is typically produced by special belly fat cells, and is the major estrogenic form found in naturally-menopausal women who are not taking HRT. It is not directly active in as many tissues was estradiol is, but can be readily converted by to estradiol for actual use. Because of this, it is considered by biochemists to more properly be thought of as an estradiol precursor (although the conversion can go both ways, meaning that estrone can also be considered a breakdown or even a storage form of estrogen). It is sometimes considered “safer” than estradiol by virtue of its weakness, but since larger quantities are required to get the same effects as a smaller quantity of estradiol as well as the fact that it is normally converted to estradiol when that form is needed, other sources consider it no more or less safe than estradiol. Buy Estrone (E1) powder

Estrone, a synthetically prepared or naturally occurring steroidal estrogen obtained from pregnant equine urine, is the primary circulating estrogen after menopause. Estrone is naturally derived from the peripheral conversion of androstenedione by an aromatase enzyme found in adipose tissues and is converted to estradiol in peripheral tissues. The estrogenic potency of estrone is one third that of estradiol. Estropipate is piperazine-stabilized estrone sulfate. Estrone, and estropipate are used to treat abnormalities related to gonadotropin hormone dysfunction, vasomotor symptoms, atrophic vaginitis, and vulvar atrophy associated with menopause, and for the prevention of osteoporosis due to estrogen deficiency. Buy Estrone (E1) powder

Estrone was isolated from pomegranate seeds and its identity was confirmed by thin-layer chromatography in three solvent systems and by four color reactions. Three derivatives were prepared and had the same chromatographic characteristics in three solvent systems as the corresponding derivatives from authentic estrone. The biological potency of this material was also comparable to that of estrone. Pomegranate seeds are the richest plant source of steroidal estrogens yet found. Buy Estrone (E1) powder

Application:

Estrone (E1, and also oestrone) is an estrogenic hormone secreted by the ovary as well as adipose

tissue with the chemical name of 3-hydroxyestra-1,3,5(10)-triene-17-one and the chemical formula C18H22O2. Estrone is an odorless, solid crystalline powder, white in color

with a melting point of 254.5 °C and a specific gravity of 1.23. Estrone is one of several natural

estrogens, which also include estriol and estradiol. Estrone is the least abundant of the three hormones;

estradiol is present almost always in the reproductive female body, and estriol is abundant primarily

duringpregnancy. Buy Estrone (E1) powder

Estrone is known to be a carcinogen for human females as well as cause breast tenderness or pain,

nausea, headache, hypertension, and leg cramps. In men, estrone has been known to cause anorexia,

nausea, vomiting, and erectile dysfunction.Estrone is relevant to health and disease states because of

its conversion to estrone sulfate, a long-lived derivative. Estrone sulfate acts as a reservoir that can be

converted as needed to the more active estradiol. It is the predominant estrogen in postmenopausal women.

 

Specification:

 

Test ItemsSpecificationTest Results
DescriptionWhite or almost white crystalline powderWhite crystalline powder
Melting Point191.0~193.0ºC192ºC
Loss of drying≤1.0%0.5%
Heavy Metal≤20ppm15ppm
TLCOnly one spotOnly one spot
Assay≥99.5%99.91%
ConclusionIt complies with the USP 32.

 

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2. Quality: Our company is a professional leading factory in China in pharmaceutical area, We had

stable customers and exported to Germany, Spain, UK, USA, Australia, Middle East, and any other

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3. Package: Professional packing with professional materials
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