Phenylpyruvic acid is produced in the body of abnormal amounts as the result of a molecular disease called phenylketonuria, which causes irreversible brain damage. phenylpyruvic acid is composed of 65.85% c, 4.91% h, and 29.24% o. what is its empirical formula? 1. cho3 2. c66h5o29 3. c3h3o 4. c6h5o2 5. c9h10o3 6. c3h2o 7. c9h8o3