5′-核苷酸二钠为一种食物增味剂,由5′-肌苷酸盐和5-鸟苷酸盐混合组成,与味精(谷氨酸钠)合用可改善各种食品的滋味。以往曾有作者以1克/公斤的5′-核苷酸二钠喂养大鼠二年未呈现任何显著毒性作用。一次给药剂量高达10克/公斤,在大鼠与小鼠中亦未有任何不良作用(但两倍于此剂量即引起动物死亡)。另有作者对孕期的大小鼠或猴的整个器官形成期间给予5′-核苷酸二钠亦未发现有致胎盘 Disodium 5’-nucleoside is a food flavor enhancer consisting of a mixture of 5’-inosinate and 5-guanylate, which in combination with monosodium glutamate improves the taste of various foods . There have been previous reports that rats fed either 1 g / kg disodium 5’-nucleotides did not show any significant toxic effects for two years. A dose of up to 10 g / kg was administered at once without any adverse effects in rats and mice (but twice as much at this dose resulted in death of the animals). Another author of the rat during pregnancy or the whole organ of rats given mononuclear disodium 5’-nucleotide also found to have placenta