HALL OF FAME / inventor profile

Alfred Einhorn
Born February 27, 1917 – 1917

Alkamin Ester of Para-Aminobenzoic Acid
Patent #: 812,554

Inducted 2007

German chemist Alfred Einhorn invented the widely recognized dental anesthetic Novocain. With his advancement, he ushered in a new era of safer, more reliable anesthetics.

Invention Impact


Before the discovery of Novocain, cocaine was the most commonly used local anesthetic. In addition to being highly addictive, cocaine contained a level of toxicity that caused concern in the medical profession. Many individuals— including Einhorn, who started his work in this field in 1898—researched anesthetics that could provide an alternative to cocaine. In 1904, after years of trials and experiments, Einhorn reached a breakthrough with the substance he first named procaine, later to be known as Novocain.

Novocain was adopted as the standard local anesthetic in the medical profession shortly after its inception in 1905. While its anesthetic capabilities were weaker than cocaine, Novocain proved to be the safest, effective alternative to cocaine. Although it has been replaced by Lidocaine, Novocain is still used today, most commonly in dentistry.

Inventor Bio

Born in Hamburg, Germany, Einhorn studied at the University of Tübingen before earning his degree in 1880. He worked as a research chemist at Meister, Lucius & Brüning and Bayer Laboratories.



© 2007 National Inventors Hall of Fame