Thiamine mononitrate is a stable nitrate salt form of thiamine (vitamin B1). It occurs as a white crystalline powder and is prepared from thiamine hydrochloride. It is used as a food or nutritional supplement and is the preferred form of the vitamin for food fortification. Thiamin mononitrate is used in the pharmaceutical industry to treat beriberi and general malnutrition or malabsorption. Thiamine can be found naturally in foods like grains, yeast, molasses, pork and animal organ meats. Dairy, eggs and legumes have smaller amounts.Though thiamine is found naturally in foods, thiamine mononitrate is not. Thiamine mononitrate is synthesized by removing a chloride ion from thiamin hydrochloride and mixing the final product with nitric acid. Thiamine hydrochloride is hygroscopic (water-absorbing) whereas the mononitrate has almost no hygroscopic properties. For this reason, the mononitrate is the more stable form of the vitamin in fortified flours and cereals.Thiamine mononitrate is also specifically known as mononitrate de thiamine, nitrate de thiamine, and thiamine nitrate. In addition, as a vitamer of thiamine, it is also known by all the generic names of thiamine, such as thiamine, antiberiberi factor, antiberiberi vitamin, antineuritic factor, antineuritic vitamin, facteur anti-b閞ib閞i, facteur antineuritique, tiamina, vitamin B1, vitamin B-1, vitamina B1, vitamine anti-b閞ib閞i, vitamine antineuritique, vitamine B1.硝酸硫胺素在具有以下功能的保健食品中使用过该原料（注：不代表该原料本身具有以下保健功能）,具有如下功能:
缓解体力疲劳,增强免疫力,促进排铅,减肥,对化学性肝损伤有辅助保护功能,辅助改善记忆,改善营养性贫血,提高缺氧耐受力,通便,改善生长发育,缓解视疲劳,辅助降血脂,辅助降血糖,增加骨密度,改善睡眠,调节肠道菌群,抗氧化,祛痤疮,改善皮肤水份,其中在宝健牌多种维生素矿物质片,圃美多牌多种维生素矿物质片,多乐益宝R维生素B族片,中就有使用过该原料.
说明：以上对于原料功效的说明仅来源于其在对应保健食品中的运用，不代表该原料本身具有以下保健功能。