What is the chemical name and formula for lemon juice?

Lemon juice primarily consists of a weak organic acid named citric acid. The chemical formula for citric acid is:

C6H8O7

Citric acid is a tricarboxylic acid that occurs naturally in various citrus fruits, including lemons. When these fruits are juiced, the extracted liquid is commonly referred to as lemon juice. Citric acid contributes to the sour taste characteristic of lemons and many other citrus fruits.

In addition to citric acid, lemon juice contains water, small amounts of other organic acids like ascorbic acid (vitamin C), flavonoids, minerals, and trace amounts of essential oils that contribute to its aroma and flavor.