who was also a chemist and known as the discoverer of urea.

Rouelle started as an apothecary.He later started a public course in his laboratory in 1738, in 1742 he was appointed experimental demonstrator of chemistry at the Jardin du Roi in Paris. he was especially influential and popular as a teacher, and taught many students among whom were Denis Diderot, Antoine-Laurent de Lavoisier, Joseph Proust