Stigmasterol is a substance obtained by physical purification, which has the characteristics of high nutritional value and strong physiological activity.
The molecular formula is C29H48O, the relative molecular weight is 412.69, CAS NO.:83-48-7,white powder.
Stigmasterol is a phytosterol, which is one of the main sterols in soybean oil. Stigmasterol is also found in Stephania tetrandra, Phellodendron amurense, lentil and potato, as well as in marine phytoplankton, seawater and marine sediments.
Melting point: 170 degrees centigrade (usually 165~167 degrees Celsius). When the purity is 90%, the melting point is 164~167 C.
Optical rotation: <=-30; -51 C (c=2, chloroform).
Boiling point: 490.4 degrees C at 760 mmHg.
Properties: soluble, chloroform, benzene, ethyl acetate, pyridine, soluble in ethanol and acetone. Insoluble in water.
At present, the main methods of extracting stigmasterol from mixed phytosterols at home and abroad are solvent method and solvent crystallization method.
Stigmasterol is mainly used as raw material for synthesis of steroid hormones, and can also be used as raw material for producing vitamin D3. For biochemical research and progesterone preparation, it is also a raw material for progesterone manufacture in medicine.
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