Complex sentence: Malic acid is an organic compound with the formula HO 2 CCH 2 CHOHCO 2 H. This dicarboxylic acid is the active ingredient in many sour or tart foods.
Split into simpler sentences: Malic acid is an organic compound with the formula HO2CCH2CHOHCO2H. This tart-tasting dicarboxylic acid plays a role in many sour or tart foods.