What was the title of Heinrich Hörlein's doctoral thesis?
The Chemistry of Aspirin
The Synthesis of Prontosil
The Pharmacology of Sulfonamides
Research on the Synthesis of Azo Dyes
Answer
Heinrich Hörlein's doctoral thesis was titled "Research on the Synthesis of Azo Dyes." Azo dyes are a type of synthetic dye that contain an azo group (-N=N-) as part of their molecular structure. They are widely used in various industries, including textiles and plastics.
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