Joseph Louis Proust

Joseph Louis Proust was a French pharmacist and chemist, he was the creator of Proust's law of definite proportions, which tells us that when compounds combine they do so in definite proportions. His contributions are closely linked to the area of chemistry rather than pharmacy, contributing with his law that is still used today.

He worked and studied in his father's laboratory, where he performed very well in the field of pharmacy, and continued his studies in Paris where he became head pharmacist at the Salpêtrière hospital. After that he went to live in Spain for most of his life, where he worked as a professor of chemistry in several institutions, creating in one of them his famous Proust's law.

I like this character, because he was able to perform in these two areas equally, he had so much knowledge that he was very educated in both chemistry and pharmacy. He was a genius.