- for the Swiss painter see Hans Fischer (painter)
|Born||July 27, 1881
Höchst on Main, Germany
|Died||March 31, 1945
|Institutions||University of Innsbruck,
University of Vienna,
Technical University of Munich
|Alma mater||University of Lausanne,
University of Marburg
|Doctoral advisor||Emil Fischer|
|Notable awards||Nobel Prize for Chemistry (1930)|
Early years 
Fischer was born in Höchst on Main. His parents were Dr. Eugen Fischer, Director of the firm of Kalle & Co, Wiesbaden, and Privatdozent at the Technical High School, Stuttgart, and Anna Herdegen. He went to a primary school in Stuttgart, and later to the "Humanistisches Gymnasium" in Wiesbaden, matriculating in 1899. He read chemistry and medicine, first at the University of Lausanne and then at Marburg. He graduated in 1904, and in 1908 he qualified for his M.D.
He worked first at a Medical Clinic in Munich and then at the First Berlin Chemical Institute under Emil Fischer. He returned to Munich in 1911 and qualified as lecturer on internal medicine one year later. In 1913 he became a lecturer in physiology at the Physiological Institute in Munich. In 1916 he became Professor of Medical Chemistry at the University of Innsbruck and from there he went to the University of Vienna in 1918.
From 1921 until his death he held the position of Professor of Organic Chemistry at the Technical University of Munich.
Fischer's scientific work was mostly concerned with the investigation of the pigments in blood, bile, and also chlorophyll in leaves, as well as with the chemistry of pyrrole from which these pigments are derived. Of special importance was his synthesis of bilirubin and haemin. He received many honours for this work, and received the Nobel Prize in 1930. The lunar crater Fischer was named after him (and Hermann Emil Fischer) in 1976.
Personal life 
- Heinrich Wieland (1950), "Hans Fischer und Otto Hönigschmid zum Gedächtniss", Angewandte Chemie 62 (1): 1–4, doi:10.1002/ange.19500620102.
- Bickel, M H (2001), "[Henry E. Sigerist and Hans Fischer as pioneers of a medical history institute in Zurich]", Gesnerus 58 (3–4): 215–9, PMID 11810971
- Stern, A J (1973), "Hans Fischer (1881–1945)", Ann. N. Y. Acad. Sci. 206: 752–61, Bibcode:1973NYASA.206..752S, doi:10.1111/j.1749-6632.1973.tb43252.x, PMID 4584221
- Watson, C J (1965), "Reminiscences of Hans Fischer and his laboratory", Perspect. Biol. Med. 8 (4): 419–35, PMID 5323649
- Kämmerer, H (1961), "Hans Fischer (1881–1945). A reminiscence on the 80th anniversary of his birth", Münchener medizinische Wochenschrift (1950) (1961 Nov 3) 103: 2164–6, PMID 14036988