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Molecular formula : MW : CAS :
nature : called ergosterol. It is the most important plant sterols. Exist in yeast and certain plants. A colorless crystal. Density 1.04. 166 ° C melting point. Do not dissolve in water, soluble in ether, chloroform, acetone, ethanol and other organic solvents. Ultraviolet irradiation, the molecules four carbon rings of a fracture into vitamin D2. Vitamin D2 for manufacturers of raw materials. Such yeast can be obtained.
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