Initial language selection is based on your web browser preferences.
**Systematic name:**
2-hydroxypropane-1,2,3-tricarboxylic acid
**General formula:** C₆H₈O₇
**Rational formula:**
HOOCCH₂C(OH)(COOH)CH₂COOH
**Molar mass:** 192,12 g/mol
**Information:** Citric acid is a weak tricarboxylic acid. In biochemistry it is an important intermediate in the citrate cycle.
**Use:** Citric acid is a natural preservative and is used as a flavouring component in food and beverages (E 330).
**Occurrence:** It is encountered in the juice of many fruits, especially lemon and lime, in which its amount may go up to 8% in dry weight.