Baeyer, Johann Friedrich Wilhelm Adolph von (1835–1917)

Adolph von Baeyer

Johann Baeyer was a German organic chemist who was awarded the 1905 Nobel Prize in Chemistry for his synthesis of indigo. He also investigated uric acid derivatives, discovered the phthalein dyes, and devised a "strain" theory to account for the stability and conformation of carbon compounds with five-membered and six-membered rings.