Euler-Chelpin
Euler-Chelpin, Hans Karl August Simon von (1873--1964), a Swedish chemist. For his work on the fermentation of sugar and the chemistry of enzymes, he shared the 1929 Nobel Prize for chemistry with Arthur Harden. Euler-Chelpin was born in Germany and studied there before going to Sweden. He was a professor at the University of Stockholm, 1898-1941, and was director of the university's institute for research in organic chemistry.