The chemical formula of monosodium glutamate is C5H8O4NNa, which means it is the sodium salt of glutamic acid. Monosodium glutamate is widely used in food, mainly to enhance the flavor of food. Its common names include flavor powder and flavor element, and it is a common food additive. Sodium glutamate is the main component of monosodium glutamate, which provides a unique flavor for food seasoning.