August Kekulé was a German chemist born in 1829, best known for his work on the structure of organic compounds. He proposed the ring structure of benzene, a significant advancement in understanding aromatic compounds. His ideas laid the foundation for modern organic chemistry. Kekulé's contributions extended beyond benzene; he also developed theories about the structure of other organic molecules. His work influenced many chemists and helped establish the importance of molecular structure in chemical reactions. He passed away in 1896, leaving a lasting legacy in the field of chemistry.