Aspartame is synthesized from aspartic acid and phenylalanine.

Aspartame is commonly known as aspartame, and its chemical name is methyl aspartate, and its molecular formula is c14h18no5. Aspartame is white, tasteless and has a strong sweetness. Its sweetness is 200 times that of sucrose, and its sweetness is similar to that of sugar. It has a cool feeling, no bitterness, and no ambiguity of metal. The PH value of 0.8% aqueous solution is 4-6.5. PH 3~5 is stable at low temperature, easy to hydrolyze at high temperature, and easy to decompose when alkaline. At present, it is ideal to prepare or use in frozen food.

Sweetness was found in 1965. Developed and patented by Seark Company of the United States, it was approved as a food additive by the US Food and Drug Administration (FDA) on 1974. Sweeteners are widely used because of their non-toxic, low-calorie, high-sweetness, non-obesity, no dental caries and no cardiovascular diseases, and have been listed in the 22nd edition of the United States Pharmacopoeia and the United States Pharmacopoeia of Food Chemistry (1983). Its synthetic route is simple and clear.

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