Aspartame is an artificial sweetener with the chemical name L-α-asparagine-L-phenylalanine methyl ester and the chemical formula C14H18N2O5. Here is a description of aspartame and some common uses:

Description: 

•Chemical properties: Aspartame is a white crystalline powder with a very high sweetness, about 200 times that of sucrose. It is soluble in water.

•Production method: Aspartame is synthesized from L-phenylalanine and L-aspartate methyl ester by chemical reaction.

Purpose: 

1. Food and beverage additives: Aspartame is a commonly used low-calorie sweetener, which is widely used in a variety of foods and beverages, including sugar-free beverages, low-sugar foods, chewing gum, candy, yogurt, ice cream, etc. Because aspartame has a high sweetness intensity and is extremely low in calories, it can replace sucrose as a sweetener, making foods and beverages sweet without adding too many calories.

2. Use in diabetic foods: Since aspartame has almost no glycemic index, that is, it does not significantly affect blood sugar levels, it is often used in foods for people with diabetes to replace sucrose and provide sweetness without causing a rise in blood sugar.

3. Low calorie options for foods and beverages: Since aspartame is extremely low in calories, it is chosen by many people as part of a low calorie diet to reduce caloric intake and control weight.

4. Oral hygiene products: Aspartame is also used in oral hygiene products such as chewing gum, children's toothpaste and mouth fresheners to provide sweetness without causing tooth decay.