A chemical compound, also known as urea, that is the main end product of protein metabolism in mammals and used in fertilizers and pharmaceuticals.
From 'carb-' (carbon) combined with 'amide' (a type of organic compound), the name literally describes its chemical structure. Urea was first discovered in urine in the 1700s.
Urea was the first organic compound ever synthesized from inorganic chemicals in 1828—this breakthrough proved that the substances of life weren't magically different from regular chemistry, revolutionizing all of biology.
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