Vitamin B6, also known as pyrazole compound, which include pyridoxine, pyridoxal and pyridoxamine, exists in the form of phosphate in the body, is a kind of water-soluble vitamins, light or alkali easy damage, not resistant to high temperature. It is 6 - methyl - 5 - hydroxy - 3, 4 pyridine hydrochloride, two methanol, according to the drying crystal measurement including C8H11NO3 · HCl 98.0% - 102.0% character. It is white or kind of white crystalls or crystal powder, odourless, taste bitter, acid with light gradually metamorphism. Soluble in water, slightly soluble in ethanol, insoluble in chloroform or ether.
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