Nicotinamide Vitamin B3
Nicotinamide Vitamin B3
Niacinamide is a white needle shaped crystalline or crystalline powder, odorless or slightly foul smelling, with a slightly bitter taste. Relative density 1.4, melting point 129-131 ℃. 1g of this product is soluble in 1mL of water, 1.5mL of ethanol, or 10mL of glycerol, and insoluble in ether. The pH of a 10% aqueous solution is 6.5-7.5. Has weak hygroscopicity. Relatively stable, capable of withstanding acid, alkali, and high temperatures, and stable to light and heat in dry air. Heating in alkaline or acidic solutions produces niacin. Oral LD502.5-3.5g/kg for rats, with no special regulations on ADI values (ECC, 1990).
Niacinamide is a white needle shaped crystalline or crystalline powder, odorless or slightly foul smelling, with a slightly bitter taste. Relative density 1.4, melting point 129-131 ℃. 1g of this product is soluble in 1mL of water, 1.5mL of ethanol, or 10mL of glycerol, and insoluble in ether. The pH of a 10% aqueous solution is 6.5-7.5. Has weak hygroscopicity. Relatively stable, capable of withstanding acid, alkali, and high temperatures, and stable to light and heat in dry air. Heating in alkaline or acidic solutions produces niacin. Oral LD502.5-3.5g/kg for rats, with no special regulations on ADI values (ECC, 1990).