pyridoxine b6 vitamin White crystalline powder, odorless, sour and bitter taste, sublimation when heated. The dry product is stable to air and light, and the aqueous solution is gradually oxidized and discolored when exposed to air, and the oxidation is accelerated with the increase of pH value. Mp205-209 ℃ (decomposition), the maximum absorption (0.1 mol/L HCl) at 290nm±1nm wavelength. Easily soluble in water (1:4.5), the solution is acidic, slightly soluble in ethanol (1:90) and acetone, insoluble in ether and chloroform. Low toxicity, LD50 (rat, oral) 4000 mg/kg. pyridoxine b6 vitamin(also called vitamin B6 or pyridoxine hydrochloride) is involved in a variety of bodily functions and affects both mental and physical health. It is required for the production of stomach acid and assists in the absorption of fat and protein by the body