Gerhard Domagk





Gerhard Johannes Paul Domagk (30 October 1895 – 24 April 1964) was a German pathologist and bacteriologist. He is credited with the discovery of Sulfonamidochrysoidine (KI-730) – the first commercially available antibiotic (marketed under the brand name Prontosil ) – for which he received the 1939 Nobel Prize in Physiology or Medicine.