Tartaric acid is a natural organic acid found in fruits, especially grapes. It has various applications in food, medicine and industry, and is also a chiral molecule that played a role in the discovery of chemical chirality. Learn about tartaric acid , a carboxylic acid found in fruits and vegetables, with a chemical formula C 4 H 6 O 6. Discover its properties, structure, uses, and FAQs in this article by BYJU'S Chemistry. Tartaric acid , also known as acidum tartaricum, 2,3-dihydroxybutanedioic acid (IUPAC nomenclature), is a white crystalline organic acid found naturally in many fruits with the formula C4H6O6. Tartaric acid comprises carbon, hydrogen, and oxygen with a molecular formula of C4H6O6. The structure consists of two -COOH and two hydroxy groups. Tartaric acid is a naturally occurring diprotic, alpha hydroxycarboxylic acid found in citrus, bananas, tamarind, and especially grapes. It exists in 3 stereoisomeric forms meso tartaric acid , D- (-)- tartaric acid , and L- (+)- tartaric acid . It played an important role in bringing the concept of chirality into the light. Pasteur was the first one ...