1. He first synthesized salicylic acid. (1853) View Summary 2. He developed synthetic method of producing indigo from petrochemicals (1867) 3. He discovered urea, the first natural organic compound to be synthesized in the laboratory. (1828) 4. He discovered the structure of benzene (1865) 5. He introduced the term, Organic Chemistry to describe the study of compounds isolated from nature (1807) 6. He discovered the existence of molecular asymmetry, the foundation of stereochemistry (1848) 7. He observed polarization with several organic liquids, including oil of turpentine.( 1815) 8. He devised a method of distilling paraffin from coal and oil shale. (1848) 9. He developed new methods for the quick and precise measurement of the quantities of carbon, hydrogen, and nitrogen in organic compounds. (1840) GROE 26 A ✓ C @