β-Sitosterol β-Sitosterol

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

Numbering system

CAS number:83-46-5

MDL number:MFCD00003631

EINECS number:201-480-6

RTECS number:WJ2600000

BRN number:1916165

PubChem number:24899468

Physical property data

1. Properties: White crystalline solid.

2. Density (g/mL, 20/4℃): 0.97

3. Relative vapor density (g/mL, air=1): Uncertain

4. Melting point (ºC): 140

5. Boiling point (ºC, normal pressure): 501.9

6. Boiling point (ºC, 5.2kPa): Uncertain

7. Refractive index: Uncertain

8. Flash point (ºC): 220.4

9. Specific rotation (º): [α]_D²⁵ -37° (C=2, in chloroform).

10. Autoignition point or ignition temperature (ºC): Uncertain

11. Vapor pressure (kPa, 25ºC): Uncertain

12. Saturation Vapor pressure (kPa, 60ºC): Uncertain

13. Heat of combustion (KJ/mol): Uncertain

14. Critical temperature (ºC): Uncertain

15. Critical pressure (KPa): Uncertain

16. Log value of oil-water (octanol/water) partition coefficient: Uncertain

17. Explosion upper limit (% , V/V): Uncertain

18. Lower explosion limit (%, V/V): Uncertain

19. Solubility: Insoluble in water, slightly soluble in Acetone and ethanol are soluble in benzene, chloroform, ethyl acetate, carbon disulfide, petroleum ether, acetic acid, etc.

Toxicological data

Ecological data

None yet

Molecular structure data

1. Molar refractive index: 129.21

2. Molar volume (cm³/mol): 424.3

3. Isotonic specific volume (90.2K ): 1051.0

4. Surface tension (dyne/cm): 37.6

5. Polarizability (10^-24cm³): 51.22

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 9.3

2. Number of hydrogen bond donors: 1

3. Number of hydrogen bond acceptors: 1

4. Number of rotatable chemical bonds: 6

5. Number of tautomers: none

6. Topological molecule polar surface area 20.2

7. Number of heavy atoms: 30

8. Surface charge: 0

9. Complexity: 634

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 9

12. Uncertain number of atomic stereocenters: 0

13. Determine the number of chemical bond stereocenters: 0

14. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

Widely distributed in plants, it can be extracted from several vegetable oils or from rice bran oil.

Storage method

Used for sealed packaging in glass bottles or plastic bags and stored in a dry and dark place.

Synthesis method

1. Take Asparagus (Aparagvs Lucidus Lindl) / 3 volumes, cool and let stand overnight. Collect the precipitates, add 2.0% hot water to the filtrate to hydrolyze for several hours, and then filter out the insoluble materials after cooling. Combine this insoluble matter with the previously collected precipitate, add 5% and heat for hydrolysis. The hydrolyzate is extracted with diethyl ether, and the diethyl ether is recovered to dryness, which is the sitosterol enrichment.

2.It is made by extracting rice bran oil from legumes.

3. Tobacco: FC, 8, 32, 41, 43; BU, 1; can be isolated from wheat germ oil and corn oil.

4. Obtain platelets from ethanol.

Purpose

1. Sterols are a class of physiologically active substances. It can be used in medicine to promote wound healing, muscle hyperplasia and enhance capillary circulation. It can also be used to synthesize sterol hormones that regulate water, protein, sugar and inorganic salts. It is an important raw material for the production of steroid hormone drugs. It can also be used for skin nutrition and protection. In addition, it also has good prospects for the development and application of textile softeners, gasoline emulsifiers and pigment dispersants.

2.Sitosterol is non-toxic, non-irritating to the skin, has significant anti-inflammatory properties, and can be used to treat skin cancer and skin ulcers. Has antioxidant capacity. It has an auxiliary effect in inhibiting sweat gland secretion. Used in skin care products when combined with vitamins, it has conditioning effects, making the skin smooth and moist, and treating or delaying keratinization of the skin. It can also be used as an auxiliary in hair care products.

3.It has the functions of lowering cholesterol, relieving cough, eliminating phlegm, inhibiting tumors and repairing tissues. It is used for hypercholesterolemia, atherosclerosis and chronic tracheitis, as well as early cervical cancer and skin ulcers.