A simple chemistry experiment in 1828 challenged how science viewed living matter

A German chemist, named Friedrich Wöhler, performed an experiment in the laboratory in 1828, which led to the discovery of something that became famous in the chemistry community. It involved heating certain inorganic compounds to form urea, which was otherwise strongly associated with organic substances.This experiment is remembered as a landmark event in the field of chemistry due to its ability to question the hypothesis that organic compounds can be synthesised only within living systems.A simple experiment with a big impactVitalism was one of the popular theories during those times. It implied that living entities had a specific “vital force,” which was unique and different from the chemicals formed using conventional or ordinary chemistry. However, the discovery of Wöhler made scientists doubt that idea.As stated in a review in the American Journal of Nephrology, available through PubMed, the first successful laboratory synthesis of an organic compound from inorganic substances took place in 1828 by Friedrich Wöhler. Simply put, the review says that Wöhler used cyanic acid and ammonium compounds as reactants to produce urea.Additionally, urea was considered a biological compound since it was present in urine and other organisms. With that notion, it was not expected that something that existed in biological systems would be synthesised artificially from chemicals. That shocked everyone!Why did scientists pay attention?One should note that Wöhler was certainly not trying to demonstrate a philosophical notion regarding life. Still, the result quickly became important.In a 2024 review paper on PubMed Central, for instance, Wöhler’s experiment is cited as an important step for demonstrating that a biologically significant compound could be produced from inorganic substances.This breakthrough did not immediately invalidate the concept of vitalism, but it cast doubt upon it. If a biologically relevant compound could be synthesised using non-living substances, there may very well have been room to produce other substances under the same conditions.As noted by a 2022 review, Wöhler’s accomplishment is usually described as a pivotal moment in the decline of vitalist thinking. Nonetheless, this interpretation has been somewhat oversimplified, and many discussions regarding the topic took place long after the event. The discovery became larger than the experimentOver time, Wöhler's experiments came to be one of the most famous examples in scientific history. According to many, this experiment ended any discussion of vitalism once and for all.However, historians say this narrative is overly simplistic. Another article on the topic of mechanism and vitalism suggests that the Wöhler synthesis became part of further scientific discussion about how one should scientifically understand life.Contrary to belief, scientists were still debating the nature of life well past 1828. Wöhler's experiments certainly did not provide an answer to every question. Its power lay in the undeniable evidence that at least one substance associated with life had been successfully created using ordinary chemical reactions.Yet another paper published referred to this particular example as the turning point in understanding life scientifically.Why is the experiment still remembered?Nearly 200 years later, Wöhler’s experiment continues to be cited whenever there is talk of the history of organic chemistry.Reports discuss Wöhler’s synthesis of urea when discussing the development of organic chemistry. The historic process of carbamylation of proteins in another review is also mentioned alongside Wöhler’s historic synthesis of urea.It is an important discovery due to the fact that it marked a shift in the way scientists viewed the nature of life. At the time, people believed in a strict separation between the living world and the nonliving world. However, this separation started to crumble due to Wöhler’s discovery.The experiment turned out to be more important than expected: from just a simple chemical reaction, it managed to become a revolution in science. This was landmark in showing that a biological compound could be made outside the body.