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83-46-5

Basic Information
CAS No.: 83-46-5
Name: beta-Sitosterol
Molecular Structure:
Molecular Structure of 83-46-5 (beta-Sitosterol)
Formula: C29H50O
Molecular Weight: 414.71 .
Synonyms: Nimbosterol(6CI);Stigmast-5-en-3b-ol (8CI);(-)-b-Sitosterol;(24R)-Ethylcholest-5-en-3b-ol;(24R)-Stigmast-5-en-3b-ol;22,23-Dihydrostigmasterol;24a-Ethylcholesterol;Angelicin;Angelicin (steroid);Azuprostat;Betaprost;Cinchol;Cupreol;Harzol;NSC18173;NSC 49083;NSC 8096;Prostasal;Quebrachol;Rhammol;Rhamnol;SKF 14463;Sito-Lande;Sobatum;Stigmasterol, 22,23-dihydro-;D5-Stigmasten-3b-ol;a-Dihydrofucosterol;a-Phytosterol;β-Sitosterol;Stigmast-5-en-3-ol, (3b)-;
EINECS: 201-480-6
Density: 0.97 g/cm3
Melting Point: 136-140 °C(lit.)
Boiling Point: 501.9 °C at 760 mmHg
Flash Point: 220.4 °C
Solubility: INSOLUBLE
Appearance: white solid
Hazard Symbols: IrritantXi,HarmfulXn
Risk Codes: 38-40-48/20/22
Safety: 22-24/25-36-26
Transport Information: UN 1888 6.1/PG 3
PSA: 20.23000
LogP: 8.02480
Synthetic route
Conditions
ConditionsYield
With methanol; potassium carbonate In dichloromethane at 20℃; for 12h;98%
With potassium hydroxide In methanol; diethyl ether at 20℃; for 15h; Inert atmosphere;93.6%
With potassium hydroxide In methanol for 1h; Heating;89%
With di(n-butyl)tin oxide In methanol; chloroform at 50℃; for 6h;10%
With oxo[hexa(trifluoroacetato)]tetrazinc; ethanol In ethanol for 18h; Reflux; Inert atmosphere;83 %Spectr.
2625-46-9, 18880-69-8, 25873-56-7

β-sitosterol trimethylsilyl ether

83-46-5

β-sitosterol

Conditions
ConditionsYield
With montmorillonite K-10 In methanol for 0.2h; Ambient temperature;98%

2-[(3S,8S,9S,10R,13R,14S,17R)-17-((1R,4R)-4-Ethyl-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yloxy]-tetrahydro-pyran

83-46-5

β-sitosterol

Conditions
ConditionsYield
With montmorillonite K-10 In methanol at 40 - 50℃; for 0.5h;96%

tert-butyl-[17-(4-ethyl-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yloxy]-dimethyl-silane

83-46-5

β-sitosterol

Conditions
ConditionsYield
With potassium fluoride; chloro-trimethyl-silane In acetonitrile at 60℃; for 0.333333h;90%
97838-91-0

(24E)-<28-(2)H>ergosta-5,24(28)-dien-3β-ol

A

83-46-5

β-sitosterol

B

57-88-5

cholesterol

C

474-62-4

Campesterol

D

481-14-1

isofucosterol

Conditions
ConditionsYield
With Morus alba Methylation;A 81%
B 7%
C 4%
D 8%
83-48-7

Stigmasterol

A

83-46-5

β-sitosterol

B

83-45-4

Stigmastanol

Conditions
ConditionsYield
With hydrogen; Raney-Nickel W2 In ethyl acetate at 20℃; for 15h; Product distribution; Further Variations:; molar ratios; atmospheric pressure;A 76%
B 11%

C30H52O

83-46-5

β-sitosterol

Conditions
ConditionsYield
With toluene-4-sulfonic acid In 1,4-dioxane; water at 80℃; for 5h;33%
33999-15-4

(24R)-3β-chlorostigmast-5-ene

A

83-46-5

β-sitosterol

B

31793-83-6

7α-hydroxysitosterol

Conditions
ConditionsYield
With diethyl ether; magnesium anschliessendes Behandeln mit Sauerstoff;
53603-94-4, 70832-49-4, 108866-13-3, 117467-15-9

methyl-(3α.5α-cyclo-stigmasten-(22t)-yl-(6β))-ether

83-46-5

β-sitosterol

Conditions
ConditionsYield
With palladium; ethyl acetate Hydrogenation.Kochen des Reaktionsprodukts mit Zinkacetat in Essigsaeure und Behandlung des erhaltenen 3β-Acetoxy-stigmastens-(5) mit aethanol. KOH;
83-46-5

β-sitosterol

Conditions
ConditionsYield
With palladium; ethyl acetate Hydrogenation.Behandlung des Reaktionsprodukts mit aethanol. KOH;
6035-62-7, 51297-12-2, 58581-06-9, 83946-12-7, 83946-13-8, 108101-25-3

(10R)-3c-Acetoxy-10r.13c-dimethyl-17c-((R)-1-methyl-4-isopropyl-hexen-(4t)-yl)-(8cH.9tH.14tH)-Δ5-tetradecahydro-1H-cyclopenta[a]phenanthren

83-46-5

β-sitosterol

Conditions
ConditionsYield
With palladium; ethyl acetate; acetone Hydrogenation.Behandlung des erhaltenen Reaktionsprodukts mit aethanol. KOH;
474-58-8

Daucosterol

A

2280-44-6

D-Glucose

B

83-46-5

β-sitosterol

Conditions
ConditionsYield
With hydrogenchloride In ethanol acidic hydrolysis for structure determination;
With hydrogenchloride In methanol for 5h; Heating;
With sulfuric acid
Conditions
ConditionsYield
With sulfuric acid for 4h; Heating; hydrolysis;
474-58-8

Daucosterol

83-46-5

β-sitosterol

Conditions
ConditionsYield
With hydrogenchloride In 1,4-dioxane; water for 2h; Heating;
With hydrogenchloride In ethanol for 6h; Heating;
With sodium acetate-acetic acid buffer12 mg
With hydrogenchloride In methanol for 6h; Reflux;
With sulfuric acid In methanol for 3h; Reflux;
83-48-7

Stigmasterol

83-46-5

β-sitosterol

Conditions
ConditionsYield
With hydrogen
Multi-step reaction with 3 steps
1: 98 percent / p-toluenesulfonic acid monohydrate / acetic acid / 1 h / Heating
2: 86 percent / H2 / PtO2 / ethyl acetate / 3 h
3: 89 percent / potassium hydroxide / methanol / 1 h / Heating
View Scheme
Multi-step reaction with 4 steps
1: dmap / pyridine / 6 h / 23 °C
2: potassium acetate / 3 h / 65 °C
3: 5%-palladium/activated carbon; hydrogen / methanol; dichloromethane / 24 h / 23 °C / 10343.2 Torr
4: water; toluene-4-sulfonic acid / 1,4-dioxane / 3 h / 80 °C
View Scheme
Multi-step reaction with 5 steps
1: pyridine / 24 h / 20 °C / Inert atmosphere
2: potassium acetate / 2 h / Reflux; Inert atmosphere
3: palladium 10% on activated carbon; hydrogen / ethanol / 20 °C / Inert atmosphere
4: zinc diacetate / 2 h / Inert atmosphere; Reflux
5: potassium hydroxide / methanol; diethyl ether / 15 h / 20 °C / Inert atmosphere
View Scheme
Multi-step reaction with 3 steps
1.1: dmap; pyridine / 24 h / 20 °C
2.1: pyridine; hydrogen / methanol / 6 h / Reflux
2.2: 20 h / 2585.81 Torr / Inert atmosphere
3.1: toluene-4-sulfonic acid / water; 1,4-dioxane / 5 h / 80 °C
View Scheme
Conditions
ConditionsYield
With hydrogenchloride In methanol
127-09-3

sodium acetate

83-46-5

β-sitosterol

Conditions
ConditionsYield
With cultured cells of Rabdosia japonica Hara for 96h; Mechanism; labelling studies;
1131372-16-1

β-sitosterol 3-O-β-D-glucopyranoside

A

2280-44-6

D-Glucose

B

83-46-5

β-sitosterol

Conditions
ConditionsYield
With β-glucosidase Product distribution; other reaction partner - 1percent aq.HCl;
53139-46-1

6β-methoxy-3α,5-cyclo-5α-stigmastane

83-46-5

β-sitosterol

Conditions
ConditionsYield
With toluene-4-sulfonic acid In 1,4-dioxane; water for 3h; Heating; Yield given;
With water; toluene-4-sulfonic acid In 1,4-dioxane at 80℃; for 3h;36 mg
106401-62-1

(3S,8S,9S,10R,13R,14S,17R)-17-((1R,4R)-4-Ethyl-1,5-dimethyl-hexyl)-3-methoxymethoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene

83-46-5

β-sitosterol

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran for 1h; Ambient temperature; Yield given;

methyl (sitosterol 3-O-α-D-acetylribofuranoside)uronate

A

83-46-5

β-sitosterol

B

(2S,3S,4R,5S)-3,4-Diacetoxy-5-hydroxy-tetrahydro-furan-2-carboxylic acid methyl ester

Conditions
ConditionsYield
With hydrogenchloride; lithium aluminium tetrahydride Product distribution; 1.)THF, reflux 2.)MeOH, 75 deg C, 2 h;

C54H96O7

A

4060-09-7

2,3,4-tri-O-methyl-D-glucose

B

83-46-5

β-sitosterol

C

57-10-3

1-hexadecylcarboxylic acid

Conditions
ConditionsYield
With sulfuric acid In water for 0.5h; Heating;
Conditions
ConditionsYield
With hydrogenchloride Hydrolysis; Acid hydrolysis;
(β-)sitosteryl chloride

(β-)sitosteryl chloride

83-46-5

β-sitosterol

Conditions
ConditionsYield
With potassium acetate; acetic acid Hydrolyse des erhaltenen O-Acetyl-Derivats;
phytosterol-glucoside from Hyphear Tanakae HOSOKAWA epiphyting to Castanea crenata SIEB.

phytosterol-glucoside from Hyphear Tanakae HOSOKAWA epiphyting to Castanea crenata SIEB.

A

50-99-7

D-glucose

B

83-46-5

β-sitosterol

Conditions
ConditionsYield
With hydrogenchloride; ethanol for 4h; Heating;A n/a
B 95 % Chromat.
(β-)sitosteryl chloride

(β-)sitosteryl chloride

A

83-46-5

β-sitosterol

B

31793-83-6

7α-hydroxysitosterol

Conditions
ConditionsYield
With diethyl ether; magnesium anschliessendes Behandeln mit Sauerstoff;

3-O-(trans-4-feruloyl)-β-sitosterol

83-46-5

β-sitosterol

Conditions
ConditionsYield
Alkaline hydrolysis;
108646-29-3

22,23-dihydro-i-stigmasterol methyl ether

83-46-5

β-sitosterol

Conditions
ConditionsYield
With toluene-4-sulfonic acid In 1,4-dioxane at 80℃; for 3h;
53139-42-7

stigmasteryl tosylate

83-46-5

β-sitosterol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: pyridine / 6 h / Heating
1.2: H2 / Pd/C / ethanol / 16 h / 20 °C / 2585.74 Torr
2.1: aq. TsOH / dioxane / 3 h / 80 °C
View Scheme
Multi-step reaction with 3 steps
1: potassium acetate / 3 h / 65 °C
2: 5%-palladium/activated carbon; hydrogen / methanol; dichloromethane / 24 h / 23 °C / 10343.2 Torr
3: water; toluene-4-sulfonic acid / 1,4-dioxane / 3 h / 80 °C
View Scheme
Multi-step reaction with 4 steps
1: potassium acetate / 2 h / Reflux; Inert atmosphere
2: palladium 10% on activated carbon; hydrogen / ethanol / 20 °C / Inert atmosphere
3: zinc diacetate / 2 h / Inert atmosphere; Reflux
4: potassium hydroxide / methanol; diethyl ether / 15 h / 20 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1.1: pyridine; hydrogen / methanol / 6 h / Reflux
1.2: 20 h / 2585.81 Torr / Inert atmosphere
2.1: toluene-4-sulfonic acid / water; 1,4-dioxane / 5 h / 80 °C
View Scheme
32345-19-0

24-ethylcholesta-5,22-dien-3β-ol

83-46-5

β-sitosterol

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: 90 percent / 4-DMAP; pyridine / 6 h / 20 °C
2.1: pyridine / 6 h / Heating
2.2: H2 / Pd/C / ethanol / 16 h / 20 °C / 2585.74 Torr
3.1: aq. TsOH / dioxane / 3 h / 80 °C
View Scheme
83-46-5

β-sitosterol

21615-34-9

2-Methoxybenzoyl chloride

sitoster-3-yl 2-methoxybenzoate

Conditions
ConditionsYield
With pyridine at 20℃; for 12h;99.6%
83-46-5

β-sitosterol

87303-93-3

5α,6α- and 5β,6β-Epoxystigmastan-3β-ol

Conditions
ConditionsYield
With 3-chloro-benzenecarboperoxoic acid In dichloromethane for 1.5h; Ambient temperature;98%
With 3-chloro-benzenecarboperoxoic acid In dichloromethane for 1h; Ambient temperature;
With magnesium bis(monoperoxyphthalate)hexahydrate In acetone at 57℃; for 0.5h;
108-30-5

succinic acid anhydride

83-46-5

β-sitosterol

81125-67-9

succinic acid mono-[17-(4-ethyl-1,5-dimethylhexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] ester

Conditions
ConditionsYield
With triethylamine In toluene at 60℃; Time;98%
With dmap In toluene for 24h; Heating;88%
With potassium carbonate In N,N-dimethyl-formamide at 50℃; for 14h;77%
83-46-5

β-sitosterol

98-88-4

benzoyl chloride

1900-52-3

β-sitosteryl benzoate

Conditions
ConditionsYield
With pyridine97.5%
at 160℃;
With pyridine
Conditions
ConditionsYield
montmorillonite acid clay for 0.0166667h; microwave irradiation;97%
With sodium hydroxide for 0.05h; Irradiation;95%
With pyridine In toluene for 4h; Reflux;94.3%
83-46-5

β-sitosterol

855291-88-2

triacetylgallic acid

triacetylgallic acid β-sitosterol ester

Conditions
ConditionsYield
With sulfuric acid modified bentonite In N,N-dimethyl-formamide at 20℃; for 5.5h; Sonication;95.39%
83-46-5

β-sitosterol

2596-47-6, 147677-05-2, 34749-55-8

(E)-3-(4-acetoxy-3-methoxyphenyl)acrylic acid

3-O-(trans-4-O-acetylferuloyl)-β-sitosterol

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 100℃; under 13501.4 Torr; for 0.25h; Microwave irradiation;95%
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 1.5h; Inert atmosphere;
83-46-5

β-sitosterol

(2E,4E,6E)-octa-2,4,6-trienoyl chloride

sitosteryl (2E,4E,6E)-octa-2,4,6-trienoate

Conditions
ConditionsYield
With dmap In toluene at 0 - 20℃; for 48h; Inert atmosphere;95%
83-46-5

β-sitosterol

220769-88-0

4,5-dichloroisothiazole-3-carboxylic acid chloride

4,5-Dichloro-isothiazole-3-carboxylic acid (3S,8S,9S,10R,13R,14S,17R)-17-((1R,4R)-4-ethyl-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

Conditions
ConditionsYield
With pyridine In diethyl ether at 20 - 23℃;94%
6217-54-5

docosahexaenoic acid

83-46-5

β-sitosterol

docosahexaenoic acid phytosterol ester

Conditions
ConditionsYield
With pseudomonas lipase In water at 40℃; for 24h; Esterification; Enzymatic reaction;92.7%
83-46-5

β-sitosterol

83-45-4

Stigmastanol

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In ethyl acetate for 24h; Inert atmosphere;92%
With ammonium formate; palladium on activated charcoal In dichloromethane for 5h; Irradiation;91%
With 5% Pd/C; hydrogen In ethyl acetate at 50℃; under 3750.38 Torr;77%
83-46-5

β-sitosterol

1058-61-3

stigmast-4-en-3-one

Conditions
ConditionsYield
Stage #1: β-sitosterol With 1-Methyl-4-piperidone In toluene for 1h; Reflux; Inert atmosphere;
Stage #2: With aluminum isopropoxide In toluene for 6h; Inert atmosphere; Reflux;
92%
With aluminum tri-tert-butoxide; acetone In benzene at 75 - 85℃; for 8h;89%
With pyridinium chlorochromate In benzene for 4h; Heating;80%
506-26-3

all-cis-6,9,12-octadecatrienoic acid

83-46-5

β-sitosterol

(6Z,9Z,12Z)-Octadeca-6,9,12-trienoic acid (3S,8S,9S,10R,13R,14S,17R)-17-((1R,4R)-4-ethyl-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

Conditions
ConditionsYield
With pseudomonas lipase In water at 40℃; for 24h; Esterification; Enzymatic reaction;91.5%
60-33-3

linoleic acid

83-46-5

β-sitosterol

β-sitosterol linoleic acid ester

Conditions
ConditionsYield
With pseudomonas lipase In water at 40℃; for 24h; Esterification; Enzymatic reaction;91.2%
463-40-1

(9Z,12Z,15Z)-octadeca-9-12,15-trienoic acid

83-46-5

β-sitosterol

3177-92-2

β-sitosteryl linolenate

Conditions
ConditionsYield
at 140℃; for 166.667h; Product distribution / selectivity;91%
83-46-5

β-sitosterol

C29H49Br

Conditions
ConditionsYield
With carbon tetrabromide; triphenylphosphine In dichloromethane at 0 - 20℃; for 4.5h; Inert atmosphere;91%
83-46-5

β-sitosterol

124-63-0

methanesulfonyl chloride

126474-57-5

17-(5-ethyl-6-methylheptan-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[α]phenanthren-3-yl methanesulfonate

Conditions
ConditionsYield
With dmap; triethylamine at 0℃; for 24h; Schlenk technique;90%
With triethylamine In dichloromethane at 4 - 22℃; for 16.5h;69%
With triethylamine In dichloromethane at 4 - 22℃; for 16.5h; Inert atmosphere;69%
With pyridine unter Kuehlung;
Conditions
ConditionsYield
With pyridine In dichloromethane at 25℃; for 1h;90%
83-46-5

β-sitosterol

2094-72-6

1-Adamantanecarbonyl chloride

β-sitosteryl 1-adamantylmethanoate

Conditions
ConditionsYield
With pyridine In benzene Heating;90%
83-46-5

β-sitosterol

98-59-9

p-toluenesulfonyl chloride

18089-46-8

β-sitosteryl p-toluenesulfonate

Conditions
ConditionsYield
In pyridine89%
With pyridine for 48h; Ambient temperature;63%
With pyridine In chloroform for 21h; Ambient temperature;
With pyridine
With pyridine at 20℃; for 20h; Tosylation;
83-46-5

β-sitosterol

999-97-3

1,1,1,3,3,3-hexamethyl-disilazane

2625-46-9, 18880-69-8, 25873-56-7

β-sitosterol trimethylsilyl ether

Conditions
ConditionsYield
With montmorillonite K-10 In dichloromethane for 0.5h; Ambient temperature;89%
With phosphomolybdic acid In dichloromethane at 20℃; for 0.833333h;84%
With silica sulfate In dichloromethane at 20℃; for 0.833333h;84%
83-46-5

β-sitosterol

530-62-1

1,1'-carbonyldiimidazole

C33H52N2O2

Conditions
ConditionsYield
With triethylamine In dichloromethane at 35℃; for 72h;89%
10417-94-4

all cis-5,8,11,14,17-eicosapentaenoic acid

83-46-5

β-sitosterol

eicosapentaenoic acid phytosterol ester

Conditions
ConditionsYield
With pseudomonas lipase In water at 40℃; for 24h; Esterification; Enzymatic reaction;88%
913966-90-2

2-bromo-3,4,4-trichloro-3-butenoyl chloride

83-46-5

β-sitosterol

β-sitosterolyl 2-bromo-3,4,4-trichlorobut-3-enoate

Conditions
ConditionsYield
With pyridine In benzene at 20 - 23℃;88%
112-38-9

10-undecenoic acid

83-46-5

β-sitosterol

58380-68-0

3β-sitosterylundec-10'-enoate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃;88%
110497-20-6

N-(Diisopropyloxyphosphoryl)-Gly-OH

83-46-5

β-sitosterol

C37H66NO5P

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In 1,4-dioxane at 20℃; for 0.333333h; Microwave irradiation;87%
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    Product Name: beta-Sitosterol Synonyms: B-SITOSTEROL;BETA-SITOSTEROL;A-PHYTOSTEROL;CINCHOL;22,23-DIHYDROSTIMASTEROL;22,23-DIHYDROSTIGMASTEROL;24-ALPHA-ETHYLCHOLESTEROL;24BETA-ETHYLCHOLESTEROL CAS: 83-46-5 MF: C29H50O MW: 414.71 EINECS: 2

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    83-46-5

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    83-46-5

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    83-46-5

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    83-46-5

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    Business Type:Lab/Research institutions

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    Business Type:Lab/Research institutions

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    83-46-5

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    beta-Sitosterol Basic information Product Name: beta-Sitosterol Synonyms: B-SITOSTEROL;BETA-SITOSTEROL;A-PHYTOSTEROL;CINCHOL;22,23-DIHYDROSTIMASTEROL;22,23-DIHYDROS

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    83-46-5

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    83-46-5

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    83-46-5

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  • beta-Sitosterol

  • Casno:

    83-46-5

    beta-Sitosterol

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 1.0-5.0/Kilogram

    1.rich experience --- rich experience in pharmaceutical intermediate products and apis. we are working with large international company. 2.competitive price --- we have the competitive price owing to low labor cost and low material cost(we need lar

    Wuhan Alpha & Omega Pharmaceuticals Co., Ltd is located in Hubei Province, China.

  •  Wuhan Alpha & Omega Pharmaceuticals Co., Ltd

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    Tel:+8613545906676

    Address:Room 1305, BULIDING JINHE Wuchang District, Wuhan

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  • 83-46-5 Manufacturers 83-46-5 Suppliers Phytosterol Best Price

  • Casno:

    83-46-5

    83-46-5 Manufacturers 83-46-5 Suppliers Phytosterol Best Price

    Min.Order: 0 Metric Ton

    FOB Price:  USD $ 0.0-0.0/Metric Ton

    83-46-5 Manufacturers 83-46-5 Suppliers Phytosterol Best Price β-Sitosterol is a common plant steroid that possesses anticholesteremic properties. β-Sitosterol has recently been shown to induce G2/M arrest, endoreduplication, and apoptosis

    Xi'an ZB Biotech Co., Ltd is specialized in researching, producing and selling herbal extract and API powder, which are mainly used in nutraceutical, cosmetic, beverage and food ad

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  • Phytosterol Granular

  • Casno:

    83-46-5

    Phytosterol Granular

    Min.Order: 20 Kilogram

    FOB Price:  USD $ 1.0-1.0/Kilogram

    A granule of phytosterol is blend of HP MC and soybean phytosterol which consists of beta-sitosterol, campesterol, stigmasterol, and brassicasterol presenting in the native ration. It is formulated for preparing tablets and hard capsules use as a r

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    Tel:86-517-88275546

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Specification

1. Introduction of Beta-sitosterol
The Beta-sitosterol, with the CAS registry number 83-46-5, is a kind of white powder with no odour. It is widely distributed in the plant kingdom and found in Nigella sativa, pecans, Serenoa repens (saw palmetto), avocados, Cucurbita pepo (pumpkin seed), Pygeum africanum, cashew fruit. Beta-sitosterol is insoluble in water while soluble in chloroform and carbon disulfide. As to its usage, it is widely applied in many ways. Beta-sitosterol could be used as the Lipid-lowering drugs, and it could also be used as the acridine and health food.

2. Properties of Beta-sitosterol
(1)ACD/LogP: 10.73; (2)# of Rule of 5 Violations: 1; (3)#H bond acceptors: 1; (4)#H bond donors: 1; (5)#Freely Rotating Bonds: 7; (6)Polar Surface Area: 9.23; (7)Index of Refraction: 1.521; (8)Molar Refractivity: 129.21 cm3; (9)Molar Volume: 424.3 cm3; (10)Polarizability: 51.22 ×10-24 cm3; (11)Surface Tension: 37.6 dyne/cm; (12)Density: 0.97 g/cm3; (13)Flash Point: 220.4 °C; (14)Enthalpy of Vaporization: 88.77 kJ/mol; (15)Boiling Point: 501.9 °C at 760 mmHg; (16)Vapour Pressure: 3.53E-12 mmHg at 25°C; (17)Exact Mass: 414.386166; (18)MonoIsotopic Mass: 414.386166; (19)Topological Polar Surface Area: 20.2; (20)Heavy Atom Count: 30; (21)Complexity: 634.

3. Structure Descriptors of Beta-sitosterol
(1)Canonical SMILES: CCC(CCC(C)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)O)C)C)C(C)C
(2)Isomeric SMILES: CC[C@H](CC[C@@H](C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC=C4[C@@]3(CC[C@@H](C4)O)C)C)C(C)C
(3)InChI: InChI=1S/C29H50O/c1-7-21(19(2)3)9-8-20(4)25-12-13-26-24-11-10-22-18-23(30)14-16-28(22,5)27(24)15-17-29(25,26)6/h10,19-21,23-27,30H,7-9,11-18H2,1-6H3/t20-,21-,23+,24+,25-,26+,27+,28+,29-/m1/s1
(4)InChIKey: KZJWDPNRJALLNS-VJSFXXLFSA-N 

4. Preparation of Beta-sitosterol
Beta-sitosterol has been synthesized from stigmasterol 1, which involves a specific hydrogenation of the side-chain of stigmasterol (See Figure Below). The first step in the synthesis forms stigmasterol tosylate 2 from stigmasterol 1 (95% purity) using p-TsCl, DMAP, and pyridine (90% yield). The tosylate 2 then undergoes solvolysis as it is treated with pyridine and anhydrous MeOH to give a 5:1 ratio of i-stigmasterol methyl ether 3 (74% yield) to stigmasterol methyl ether 4, which is subsequently removed by chromatography. The hydrogenation step of a previously proposed synthesis involved the catalyst Pd/C and the solvent ethyl acetate. However, due to isomerisation during hydrolysis, other catalysts, such as PtO2, and solvents, such as ethanol, were tested. There was little change with the use of a different catalyst. Ethanol, however, prevented isomerisation and the formation of the unidentified impurity to give compound 5. The last step of the synthesis is deprotection of the β-ring double bond of 5 with p-TsOH, aqueous dioxane, and heat (80 °C) to yield β-sitosterol 6. The cumulative yield for the final two steps was 55%, and the total yield for the synthesis was 37%


5. Side effects of Beta-sitosterol
Beta-Sitosterol should be avoided during pregnancy and breast-feeding, since not enough is known about its effects on unborn and newborn children. β-Sitosterol is also not recommended for individuals with sitosterolemia, a rare inherited fat storage disease. Because people with this condition have too much β-sitosterol and related fats in their system, taking β-sitosterol will only worsen this condition. In addition, high levels of β-sitosterol concentrations in blood have been correlated with increased severity of heart disease in men having previously suffered from heart attacks

6. Use of Beta-sitosterol
Alone and in combination with similar phytosterols, β-sitosterol reduces blood levels of cholesterol, and is sometimes used in treating hypercholesterolemia.[medical citation needed] β-Sitosterol inhibits cholesterol absorption in the intestine. When the sterol is absorbed in the intestine, it is transported by lipoproteins and incorporated into the cellular membrane. Phytosterols and phytostanols both inhibit the uptake of dietary and biliary cholesterol, decreasing the levels of LDL and serum total cholesterol. Because the structure of β-sitosterol is very similar to that of cholesterol, β-sitosterol takes the place of dietary and biliary cholesterol in micelles produced in the intestinal lumen. This causes less cholesterol absorption in the body

7. Other details of Beta-sitosterol
When you deal with beta-sitosterol, you should be careful. For one thing, beta-sitosterol is irritant to eyes, respiratory system and skin, which may also cause inflammation to the skin or other mucous membranes. For another thing, it is harmful  which may cause damage to health, and it may have danger of serious damage to health by prolonged exposure through inhalation and if swallowed. Besides, it has the limited evidence of a carcinogenic effect. Therefore, you should take the following instructions to protect yourself. Wear suitable protective clothing, then avoid contacting with skin and eyes. If in case of contact with eyes, rinse immediately with plenty of water and seek medical advice. In addition, remember not to breathe dust.

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