Nicatinamide is white crystalline powder, it could be used as feed/human nutrition,booth the ... .]: 98-92-0[Physical Character]: The product is white crystalline powder, odorless or nearly odorless, bitter in taste, freely soluble in ... ]: Items of analysis USP32Characteristics White crystalline powderIdentification ConformsMelting range128.0°C ~ 131.0°CLoss on drying≤0.5%Residue on ignition ...