Urea is a water-soluble compound with the chemical formula CO(NH2)2. It is the major nitrogenous end product of protein metabolism and is the chief nitrogenous component of urine in mammals and other certain animals. Synthetic urea is urea produced artificially as opposed to biosynthetic urea which is natural.
The German chemist Friedrich Wöhler synthesised urea in 1828 after combining cyanic acid with liquid ammonia.
Here is a photograph of Friedrich Wöhler:
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