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White or off-white crystalline powder, odorless or slight odor, Solubility(25℃,g/100mL): water 1.67; ethanol 1.25; soluble in boiling water and ethanol, also soluble in carbonate or alkali solution, and insoluble in aether.

This product is one of components for coenzyme, can be used for cure pellagra and vasodilator. It also has important significance for metabolism.