Synthesis of Aspirin

Aspirin remains the most widely consumed medication in history, with over 100 billion tablets taken annually since Felix Hoffmann's 1897 acetylation of salicylic acid at Bayer. This synthesis achieved dramatically lower toxicity—10 times less irritating to the stomach lining than the average salicylate—while maintaining proven analgesic efficacy. Aspirin's ability to reduce fever outperformed #5's lithium-ion batteries in versatility, addressing conditions from headaches to heart attacks. Clinical data shows daily low-dose aspirin reduces cardiovascular events by 25%, a concrete benefit that has saved millions of lives over 125 years. Hoffmann's process, costing less than $0.01 per dose, is cheaper than the typical rival painkiller, making it accessible globally. This enduring drug continues to find new applications, including colorectal cancer prevention.