Otto Folin
| Otto Folin | |
|---|---|
| Otto Folin in biochemistry lab at McLean Hospital, 1905; photo by A.H. Folsom (Harvard) | |
| Born | April 4, 1867 | 
| Died | October 23, 1934 (aged 67) | 
| Education | University of Minnesota, Uppsala University, University of Chicago (PhD) | 
| Known for | Folin-Ciocalteu reagent for detecting polyphenols | 
| Scientific career | |
| Fields | Biochemist | 
| Institutions | Uppsala University, Pathological Institute of Charité; West Virginia University; McLean Hospital, Boston; Harvard Medical School | 
| Doctoral advisor | Julius Stieglitz | 
| Doctoral students | Edward Adelbert Doisy George H. Hitchings James Batcheller Sumner | 
Otto Knut Olof Folin (April 4, 1867 – October 25, 1934) was a Swedish-born American chemist who is best known for his groundbreaking work at Harvard University on practical micromethods for the determination of the constituents of protein-free blood filtrates and the discovery of creatine phosphate in muscles.