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50-28-2

Basic Information
CAS No.: 50-28-2
Name: Estra-1,3,5(10)-triene-3,17-diol(17b)-
Molecular Structure:
Molecular Structure of 50-28-2 (Estra-1,3,5(10)-triene-3,17-diol(17b)-)
Formula: C18H24O2
Molecular Weight: 272.39
Synonyms: Estra-1,3,5(10)-triene-3,17-diol, (17b)-;Estra-1,3,5(10)-triene-3,17b-diol;Estrace;Estraderm;Estraderm MX;Estraldine;Estrapatch;Estreva;Estroclim;Estroclim 50;Estrogel HBF;Estropause;Evorel;FemSeven;Femogen;Follicyclin;Gelestra;Ginosedol;Gynoestryl;Macrodiol;Menorest;Menostar;Nordicol;Oestergon;Oestradiol;Oestrogel;Ovastevol;Ovocylin;Primofol;Profoliol;Dihydromenformon;Diogyn;Divigel;Encore;Epiestriol 50;Progynon;Progynon DH;Sandrena 1;Systen;Theelin, dihydro-;
EINECS: 200-023-8
Density: 1.17 g/cm3
Melting Point: 178-179 °C(lit.)
Boiling Point: 445.917 °C at 760 mmHg
Flash Point: 209.634 °C
Solubility: Soluble in dimethyl sulfoxide, ethanol , water, phosphate buffer saline, dimethyl formamide, acetone, dioxane and alkali hydroxides. Slightly soluble in vegetable oils.
Appearance: white crystalline powder
Hazard Symbols: ToxicT
Risk Codes: 60-61-45-63
Safety: 53-22-36/37/39-45
Transport Information:
PSA: 40.46000
LogP: 3.60920
Synthetic route
901-93-9

estrone acetate

50-28-2

estradiol

Conditions
ConditionsYield
With diisobutylaluminium hydride; nickel dichloride In dichloromethane; toluene at -78℃; for 0.25h; Inert atmosphere;99%
1035-77-4

3-O-methyl-17β-oestradiol

50-28-2

estradiol

Conditions
ConditionsYield
With aluminium trichloride In ethanethiol for 0.5h; Ambient temperature;97.5%
With aluminium trichloride In ethanethiol for 0.5h; Ambient temperature;97.5%
With pyridine hydrochloride at 200℃; for 1h; Microwave irradiation; Ionic liquid;92%
53-16-7

Estrone

50-28-2

estradiol

Conditions
ConditionsYield
Stage #1: Estrone With sodium tetrahydroborate; sodium hydroxide In methanol; water for 0.75h;
Stage #2: With hydrogenchloride In methanol; water
97%
With silver tetrafluoroborate; diphenylsilane; C33H43ClN3ORh In dichloromethane at 40℃; for 24h; Reagent/catalyst; Glovebox; Sealed tube; diastereoselective reaction;95%
With potassium borohydride; Aliquat 336 In water at 60℃; for 1.5h;92%
14982-15-1

3-benzyloxyestra-1,3,5(10)-trien-17β-ol

50-28-2

estradiol

Conditions
ConditionsYield
With pyridine hydrochloride at 200℃; for 0.833333h; Microwave irradiation; Ionic liquid;97%
With palladium; acetic acid Hydrogenolyse;
With ethanol; sodium
With hydrogenchloride at 100℃;
69455-04-5

3,17β-bis(benzyloxy)estra-1,3,5(10)-triene

50-28-2

estradiol

Conditions
ConditionsYield
With aluminium trichloride; 1-dodecylthiol at 20℃; for 1h;97%
113680-55-0

(8R,9S,13S,14S,17S)-3,17-bis(methoxymethoxy)-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene

50-28-2

estradiol

Conditions
ConditionsYield
With aluminium trichloride; 1-dodecylthiol at 20℃; for 1h;96%
4954-14-7

(8R,9S,13S,14S,17S)-3,17-dimethoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene

50-28-2

estradiol

Conditions
ConditionsYield
With aluminium trichloride; 1-dodecylthiol at 20℃; for 1h;95%
With aluminum tri-bromide In ethanethiol for 1h; Ambient temperature;94.3%
With aluminum tri-bromide In ethanethiol for 1h; Ambient temperature;94.3%
67-56-1

methanol

17046-60-5

17β-estradiol-3,17-disulfate potassium salt

50-28-2

estradiol

Conditions
ConditionsYield
With toluene-4-sulfonic acid In 1,4-dioxane; water at 60℃; for 72h; Product distribution; Further Variations:; Solvents; Temperatures; Hydrolysis;90%
10520-93-1

androsta-1,4-diene-3α/β,17β-diol

50-28-2

estradiol

Conditions
ConditionsYield
With n-butyllithium In hexane; toluene at 100℃; for 11h; Aromatisation;83.8%
28151-61-3

estradiol-17β 3-propargyl ether

50-28-2

estradiol

Conditions
ConditionsYield
With benzyltriethylammonium tetrathiomolybdate In acetonitrile at 28℃; for 48h;82%

(8R,9S,13S,14S,17S)-13-Methyl-3,17-bis-[1-(2-trimethylsilanyl-ethoxy)-ethoxy]-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene

50-28-2

estradiol

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride In tetrahydrofuran at 45℃; for 24h;81%
250331-30-7

1β-hydroxy-3-trimethylsilylestra-1,3,5(10)-triene

50-28-2

estradiol

Conditions
ConditionsYield
With Pb(trifluoroacetate)4; trifluoroacetic acid at 20℃; for 0.5h; Oxidation;80%
1575722-51-8

(8R,9S,13S,14S,17S)-3-(4-methoxybenzyloxy)-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-ol

50-28-2

estradiol

Conditions
ConditionsYield
With proton-exchanged montmorillonite In dichloromethane at 20℃;78%
791-69-5

9(11)-Dehydroestradiol

A

50-28-2

estradiol

B

5864-38-0

9beta-Estradiol

Conditions
ConditionsYield
With Hexamethyldisiloxane; toluene-4-sulfonic acid In methanol; dichloromethane at -30 - 38℃;A 72.8%
B n/a
75-77-4

chloro-trimethyl-silane

80128-36-5

2,4-dibromo-3,17β-bis(trimethylsiloxy)estra-1,3,5(10)-triene

A

50-28-2

estradiol

B

55934-99-1

2-(trimethylsilyl)estra-1,3,5(10)-triene-3,17β-diol

C

55898-45-8

4-(trimethylsilyl)estra-1,3,5(10)-triene-3,17β-diol

Conditions
ConditionsYield
With methanol; sodium; potassium carbonate 1.) xylene, 1 h, 110 deg C, 2.) 1 h, 20 deg C; Yields of byproduct given;A n/a
B 68%
C n/a
With methanol; sodium; potassium carbonate 1.) xylene, 1 h, 110 deg C, 2.) 1 h, 20 deg C; Yield given;A n/a
B 68%
C n/a
124-41-4

sodium methylate

90850-50-3

3,17β-di-<2,3,5,6-tetrafluoro-4-(trifluoromethyl)phenoxy>estra-1,3,5(10)-triene

A

50-28-2

estradiol

B

90850-54-7

17β-<2,6-difluoro-3,5-dimethoxy-4-(trifluoromethyl)phenoxy>estra-1,3,5(10)-trien-3-ol

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 10℃; for 2h;A 4%
B 68%
159045-76-8

10β-Hydroxy-17β-(benzoyloxy)-19-norandrost-4-en-3-one

50-28-2

estradiol

Conditions
ConditionsYield
With potassium hydroxide In methanol for 1h; Heating;68%
24381-12-2

2-Iodoestradiol

A

50-28-2

estradiol

B

362-07-2

2-Methoxyestradiol

Conditions
ConditionsYield
With copper(l) iodide; sodium methylate In methanol; N,N-dimethyl-formamideA 50%
B 3%
15833-07-5

2-bromoestradiol

124-41-4

sodium methylate

A

50-28-2

estradiol

B

362-07-2

2-Methoxyestradiol

Conditions
ConditionsYield
With copper(l) iodide In methanol; N,N-dimethyl-formamideA 50%
B 3%
15833-07-5

2-bromoestradiol

A

50-28-2

estradiol

B

362-07-2

2-Methoxyestradiol

Conditions
ConditionsYield
With copper(l) iodide; sodium methylate In methanol; N,N-dimethyl-formamideA 50%
B 3%
75-77-4

chloro-trimethyl-silane

18880-67-6

3-methoxy-17β-(trimethylsiloxy)estra-1,3,5(10)-triene

A

50-28-2

estradiol

B

76920-12-2

D-1α-(trimethylsilyl)-17β-hydroxyestr-5(10)-en-3-one

C

86678-01-5

D-1α-(trimethylsilyl)-17β-hydroxyestr-4-en-3-one

D

(1R,8S,9S,13S,14S,17S)-17-Hydroxy-13-methyl-1-trimethylsilanyl-1,2,4,6,7,8,9,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-3-one

Conditions
ConditionsYield
With 2O deg C; DME+HMPA; lithium; acetic acid Product distribution; oth. solvent;A 9.9%
B 37%
C 13%
D 9.9%
57-63-6

ethinyl estradiol

A

50-28-2

estradiol

B

7678-95-7

17α-vinylestradiol

Conditions
ConditionsYield
With tetra(n-butyl)ammonium hydroxide In water at 70℃; electrolysis;A n/a
B 30%
With tetra(n-butyl)ammonium hydroxide In water electrolysis;A n/a
B 30%
2998-57-4

estramustine

A

50-28-2

estradiol

B

53-16-7

Estrone

Conditions
ConditionsYield
With cytosyl normal human prostate for 1h; Product distribution; Ambient temperature;A 9.6%
B 8.9%
2590-41-2

6-dehydro-19-nortestosterone acetate

762-72-1

allyl-trimethyl-silane

A

50-28-2

estradiol

B

119020-33-6

17β-acetoxy-7α-allyloestr-4-en-3-one

Conditions
ConditionsYield
With diethylaluminium chloride In dichloromethane at -15℃; for 2.5h; Product distribution; other reagents and products; other solvents and temperatures;A 2%
B 2%
91-22-5

quinoline

846-48-0

1-dehydrotestosterone

50-28-2

estradiol

Conditions
ConditionsYield
at 370 - 390℃;
at 370 - 390℃;
99-35-4

1,3,5-trinitrobenzene

53-16-7

Estrone

A

50-28-2

estradiol

B

57-91-0

α-estradiol

Conditions
ConditionsYield
With propan-1-ol; sodium
119-64-2

tetralin

846-48-0

1-dehydrotestosterone

50-28-2

estradiol

Conditions
ConditionsYield
at 370 - 390℃;
at 370 - 390℃;
447-53-0

1,2-Dihydronaphthalene

846-48-0

1-dehydrotestosterone

50-28-2

estradiol

Conditions
ConditionsYield
at 370 - 390℃;
at 370 - 390℃;
776-35-2

9,10-dihydrophenanthrene

846-48-0

1-dehydrotestosterone

A

50-28-2

estradiol

B

3597-39-5

4-methyl-estratriene-(1.3.5(10))-diol-(1.17β)

Conditions
ConditionsYield
at 390℃;
53-16-7

Estrone

A

50-28-2

estradiol

B

50-27-1

Estriol

Conditions
ConditionsYield
Isolierung aus dem Harn von Maennern nach Injektion von (+)-O-Acetyl-oestron;
50-28-2

estradiol

108-24-7

acetic anhydride

Conditions
ConditionsYield
With toluene-4-sulfonic acid for 0.00833333h; microwave irradiation;100%
With pyridine at 20℃; for 16h; Cooling with ice;98%
With pyridine In dichloromethane at 20℃; for 12h;96%
110-87-2

3,4-dihydro-2H-pyran

50-28-2

estradiol

3589-91-1

3,17β-bis(2-tetrahydropyranyloxy)estra-1,3,5(10)-triene

Conditions
ConditionsYield
With toluene-4-sulfonic acid In dichloromethane at 20℃; for 3h;100%
With 2,4,6-Trinitrophenol In benzene98%
With toluene-4-sulfonic acid94%
50-28-2

estradiol

1609-47-8

diethyl dicarbonate

105660-13-7

17β-Estradiol-bis-ethyl carbonate

Conditions
ConditionsYield
for 0.5h; Heating;100%
50-28-2

estradiol

17763-80-3

para-nitrophenyl triflate

167845-80-9

3-(trifluoromethanesulfonyl)-β-estradiol

Conditions
ConditionsYield
With potassium carbonate In pentane for 2h; Ambient temperature;100%
50-28-2

estradiol

53-16-7

Estrone

Conditions
ConditionsYield
With Cp*Ir(6,6'-dionato-2,2'-bipyridine)(H2O) In tert-butyl alcohol at 130℃; for 20h;100%
With Cp*Ir(6,6'-dionato-2,2'-bipyridine)(H2O) In tert-butyl alcohol for 20h; Reflux;100%
With polystyrene-supported(cathecholato) oxoRe cat. act by iPrOH; dimethyl sulfoxide In toluene for 4h; Heating; Dean-Stark apparatus;98%
24424-99-5

di-tert-butyl dicarbonate

50-28-2

estradiol

1075685-75-4

3-(t-butoxycarbonyl)-estradiol

Conditions
ConditionsYield
With dmap In tetrahydrofuran; dichloromethane at -5 - 20℃; under 760.051 Torr; for 3h;100%
50-28-2

estradiol

92722-14-0

tert-butyl 2-(4-nitrophenyl)diazenecarboxylate

1262991-80-9

C29H36N2O4

Conditions
ConditionsYield
Stage #1: estradiol With caesium carbonate In N,N-dimethyl-formamide at 20℃; for 1h; Inert atmosphere;
Stage #2: tert-butyl 2-(4-nitrophenyl)diazenecarboxylate In N,N-dimethyl-formamide at 20℃; Inert atmosphere;
100%
Stage #1: estradiol With caesium carbonate In N,N-dimethyl-formamide at 20℃; for 1h; Inert atmosphere;
Stage #2: tert-butyl 2-(4-nitrophenyl)diazenecarboxylate In N,N-dimethyl-formamide Inert atmosphere;
100%
108-05-4

vinyl acetate

50-28-2

estradiol

4245-41-4

estradiol 3-acetate

Conditions
ConditionsYield
With rubidium fluoride In acetonitrile at 80℃; for 1h;100%
50-28-2

estradiol

53866-33-4

<2,4-2H2>-1,3,5(10)-estratriene-3,17β-diol

Conditions
ConditionsYield
With perchloric acid; chloroform-d1; d(4)-methanol at 75℃; for 144h; Inert atmosphere;100%
50-28-2

estradiol

141-78-6

ethyl acetate

1743-60-8

17-β-estradiol 17-acetate

Conditions
ConditionsYield
With C12F18O13Zn4 for 40h; Reflux; Inert atmosphere; chemoselective reaction;99%
With sodium hydrogen sulfate; silica gel In hexane at 67℃; for 72h;59%
50-28-2

estradiol

79-44-7

N,N-Dimethylcarbamoyl chloride

3-O-[17β-hydroxy-estra-1,3,5(10)-trien]-yl-N,N-dimethylcarbamate

Conditions
ConditionsYield
With potassium carbonate at 90℃; for 3h;98%
109-04-6

2-bromo-pyridine

50-28-2

estradiol

3-(2-pyridoxy)estra-1,3,5(10)-trien-17β-ol

Conditions
ConditionsYield
With 2-Picolinic acid; potassium phosphate; copper(l) iodide In dimethyl sulfoxide at 90℃; for 24h;98%
75-77-4

chloro-trimethyl-silane

50-28-2

estradiol

5150-62-9

3,17β-bis(trimethylsiloxy)estra-1,3,5(10)-triene

Conditions
ConditionsYield
With 1,1,1,3,3,3-hexamethyl-disilazane In benzene for 5h; Heating;97%
50-28-2

estradiol

100-39-0

benzyl bromide

14982-15-1

3-benzyloxyestra-1,3,5(10)-trien-17β-ol

Conditions
ConditionsYield
With 18-crown-6 ether; potassium carbonate In acetone Reflux;97%
With potassium carbonate In acetone Heating;93%
With potassium carbonate In acetone for 18h; Reflux;93%
50-28-2

estradiol

107-30-2

chloromethyl methyl ether

113680-55-0

(8R,9S,13S,14S,17S)-3,17-bis(methoxymethoxy)-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran Heating;97%
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20 - 80℃; for 3h;97%
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran Heating;96%
50-28-2

estradiol

74-88-4

methyl iodide

1035-77-4

3-O-methyl-17β-oestradiol

Conditions
ConditionsYield
With sodium carbonate In methanol for 64h; Reflux; Inert atmosphere;97%
With potassium carbonate In acetonitrile for 15h; Heating;94%
With potassium carbonate
With potassium carbonate
With potassium carbonate
50-28-2

estradiol

98-59-9

p-toluenesulfonyl chloride

144150-78-7

3,17β-bis(toluene-4-sulfonyloxy)-1,3,5(10)-estratriene

Conditions
ConditionsYield
With pyridine; dmap for 2h; Ambient temperature;96.5%
With pyridine87%
50-28-2

estradiol

123-62-6

propionic acid anhydride

113-38-2

estradiol dipropionate

Conditions
ConditionsYield
With pyridine at 20℃;96%
With pyridine at 105 - 110℃; for 1h;80.03%
With pyridine at 105 - 120℃;
With pyridine
50-28-2

estradiol

79769-51-0

C18H23BrO2

Conditions
ConditionsYield
With N-chloro-succinimide; sodium bromide In ethanol for 0.5h; Ambient temperature;96%
50-28-2

estradiol

100-39-0

benzyl bromide

69455-04-5

3,17β-bis(benzyloxy)estra-1,3,5(10)-triene

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran; N,N-dimethyl-formamide at 20℃; for 20h;96%
Stage #1: estradiol With sodium hydride In N,N-dimethyl-formamide at 20℃; for 1h;
Stage #2: benzyl bromide In N,N-dimethyl-formamide
95%
In N-methyl-acetamide95%
50-28-2

estradiol

1630-83-7

4-bromo-β-estradiol

Conditions
ConditionsYield
With N-Bromosuccinimide In methanol at 20℃; for 24h; Schlenk technique;96%
With N-Bromosuccinimide In ethanol for 24h;55%
Multi-step reaction with 2 steps
1.1: tetraethylammonium bromide / dimethylsulfoxide / Electrolysis
1.2: pyridine / CH2Cl2
2.1: KOH / methanol / 2 h / Heating
View Scheme
With N-Bromosuccinimide In ethanol at 20℃;
50-28-2

estradiol

(8R,9S,13S,14S,17S)-17-hydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-3-yloxysulfonyl fluoride

Conditions
ConditionsYield
With fluorosulfonyl fluoride; N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; for 18h;96%
With fluorosulfonyl fluoride; triethylamine In dichloromethane at 20℃; for 12h; Sealed tube;84%
Stage #1: estradiol With triethylamine In acetonitrile at 20℃; for 0.166667h;
Stage #2: With 1-(fluorosulfuryl)-2,3-dimethyl-1H-imidazol-3-ium trifluoromethanesulfonate In acetonitrile for 1h; Inert atmosphere;
82%
50-28-2

estradiol

(8S,9S,13S,14S,17S)-2,4,10-triazido-17-hydroxy-13-methyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro3H-cyclopenta[a]phenanthren-3-one

Conditions
ConditionsYield
With Amberlyst A26-resin bound iodine azide In acetonitrile at 20℃; for 3h; Catalytic behavior; Inert atmosphere;96%
50-28-2

estradiol

434-64-0

perfluorotoluene

90850-46-7

3-<2,3,5,6-tetrafluoro-4-(trifluoromethyl)phenoxy>estra-1,3,5(10)-trien-17β-ol

Conditions
ConditionsYield
With sodium hydroxide; tetra(n-butyl)ammonium hydrogensulfate In dichloromethane; water for 1h; Ambient temperature;95%
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    50-28-2

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  • Casno:

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Consensus Reports

NTP 10th Report on Carcinogens. IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 21 , 1979,p. 279; IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 6 , 1974,p. 99.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . EPA Genetic Toxicology Program.

Specification

The Estradiol with the cas number 50-28-2, is also called (8R,9S,13S,14S,17S)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol named by IUPAC. Its' system names are (1) 17beta-Estradiol ; (2) Estra-1,3,5(10)-triene-3,17-diol (17beta)- ; (3) Estra-1,3,5(10)-triene-3,17-diol, (17beta)-. And it belongs to the following product categories: (1)Steroids; (2)Estrogen; (3)Hormone; (4)Analytical Chemistry; (5)Biochemistry; (6)Environmental Endocrine Disruptors; (7)Estradiol, etc. (Environmental Endocrine Disruptors); (8)Hydroxysteroids; (9)Intracellular receptor. It seems like off-white to pale yellow solid, and it is better to store Estradiol around 2-8°C. It is stable, however, it is incompatible with strong oxidizing agents.

Physical properties about 19-Norethisterone are: (1)ACD/LogP: 4.13 ; (2)# of Rule of 5 Violations: 0 ; (3)ACD/LogD (pH 5.5): 4.13 ; (4)ACD/LogD (pH 7.4): 4.13 ; (5)ACD/BCF (pH 5.5): 811.75 ; (6)ACD/BCF (pH 7.4): 810.7 ; (7)ACD/KOC (pH 5.5): 4208.86 ; (8)ACD/KOC (pH 7.4): 4203.38 ; (9)#H bond acceptors: 2 ; (10)#H bond donors: 2 ; (11)#Freely Rotating Bonds: 2 ; (12)Polar Surface Area: 18.46Å2 ; (13)Index of Refraction: 1.599 ; (14)Molar Refractivity: 79.5 cm3 ; (15)Molar Volume: 232.6 cm3 ; (16)Polarizability: 31.51 ×10-24cm3 ; (17)Surface Tension: 48.9 dyne/cm ; (18)Density: 1.17 g/cm3 ; (19)Flash Point: 209.6 °C ; (20)Enthalpy of Vaporization: 74.19 kJ/mol ; (21)Boiling Point: 445.9 °C at 760 mmHg ; (22)Vapour Pressure: 9.82E-09 mmHg at 25°C

Uses of Estradiol: It is a sex hormone, also called oestradiol. Estradiol is the predominant sex hormone present in females. It is also present in males, being produced as an active metabolic product of testosterone. In the female, estradiol acts as a growth hormone for tissue of the reproductive organs, supporting the lining of the vagina, the cervical glands, the endometrium, and the lining of the fallopian tubes. It enhances growth of the myometrium. Furthermore, the development of secondary sex characteristics in women is driven by estrogens, to be specific, estradiol. The effect of estradiol (and estrogens) upon male reproduction is complex. There is evidence that estradiol functions to prevent apoptosis of male sperm cells.

Besides, several studies have noted that sperm counts have been declining in many parts of the world and it has been postulated that this may be related to estrogen exposure in the environment. Suppression of estradiol production in a subpopulation of subfertile men may improve the semen analysis. There is evidence that estradiol has a profound effect on bone. Women past menopause experience an accelerated loss of bone mass due to a relative estrogen deficiency. Also, Estradiol has complex effects on the liver. It can lead to cholestasis. It affects the production of multiple proteins including lipoproteins, binding proteins, and proteins responsible for blood clotting. EspecialLy, Estrogen is considered to play a significant role in women’s mental health, with links suggested between the hormone, mood and well-being. Sudden drops or fluctuations in, or long periods of sustained low levels of estrogen may be correlated with significant mood-lowering. Clinical recovery from depression postpartum, perimenopause, and postmenopause was shown to be effective after levels of estrogen were stabilized and/or restored.

Production of  Estradiol. 1.During the reproductive years, most estradiol in women is produced by the granulosa cells of the ovaries by the aromatization of androstenedione (produced in the theca folliculi cells) to estrone, followed by conversion of estrone to estradiol by 17β-hydroxysteroid reductase. Smaller amounts of estradiol are also produced by the adrenal cortex, and (in men), by the testes. 2. Estradiol is not only produced in the gonads: in both sexes, precursor hormones, specifically testosterone, are converted by aromatization to estradiol. In particular, fat cells are active to convert precursors to estradiol, and will continue to do so even after menopause. Estradiol is also produced in the brain and in arterial walls.

When you are using this chemical, please be cautious about it as the following: It may impair fertility. And may cause harm or Possible risk of harm to the unborn child. Besides, it may also cause cancer. When you are using this product, wear suitable protective clothing, gloves and eye/face protection. In addition, avoid exposure - obtain special instructions before use. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.).

You can still convert the following datas into molecular structure :
(1).SMILES: Oc1cc3c(cc1)[C@H]2CC[C@@]4([C@@H](O)CC[C@H]4[C@@H]2CC3)C
(2).InChI:InChI=1/C18H24O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-17,19-20H,2,4,6-9H2,1H3/t14-,15-,16+,17+,18+/m1/s1

Toxic information of Estradiol can be showed as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD subcutaneous > 300mg/kg (300mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 26, Pg. 740, 1995.