What is the chemical formula for lemon juice?

There is no one chemical formula for lemon juice, as it is a mixture of several compounds. The main components of lemon juice include citric acid, water, and vitamin C. Citric acid is a weak organic acid that has the chemical formula C6H8O7. Vitamin C is an essential nutrient that has the chemical formula C6H8O6. Other components of lemon juice include flavonoids, limonene, and other essential oils.