He then became an assistant to Carl Neuberg at the Kaiser-Wilhelm-Institut für Experimentelle Therapie in Berlin.
After the war he became chief chemist and chemical research director of Deutsche Bergin A.G. and Holzhydrolyse A.G. at Mannheim-Rheinau and Heidelberg.
In National Socialist Germany, he anticipated an unfavorable future and in 1938 immigrated with his family to the United States, where he again worked in the chemical industry and as a consultant.
In 1929/30 he contributed five biographical sketches to the anthology of Günther Bugge Das Buch der Großen Chemiker (The book of the great chemists).
[2] In 1964 he received the Dexter Award for Outstanding Achievement in the History of Chemistry from the American Chemical Society.