| Domagk, whose work was more benign, headed a team that developed the first sulfa drug, Prontosil. |
| In the 1930s, IG Farben scientists Gerhard Domagk, Fritz Mietzsch, and Joseph Klarer, discovered prontosil, the first commercially available antibacterial drug. |
| Thus Paul Ehrlich's Salvarsan was an arsenic analogue of an azo dye, and the first sulfa, or wonder, drug, Prontosil, was the metabolic product of a red azo dye. |
