Sidney Udenfriend (April 5, 1918 – December 29, 1999) was an American biochemist, pharmacologist, founding director of the Roche Institute of Molecular Biology, co-discoverer of a color test to detect an intestinal tumor often linked with diseased heart valves. New York Times:COLOR TEST DETECTS TUMOR OF INTESTINE;September 23, 1955 National Academies Press:National Academy of Sciences:Biographical Memoirs:v.83:Sidney Udenfriend

American Association for Clinical Chemistry; Sidney Udenfriend, PhD;1969 Outstanding Contributions to Clinical Chemistry Udenfriend was also a member of the National Academy of Sciences, a recipient of the Ames Award, Hillebrand Award, the Arthur S. Flemming award, Gairdner Award, the Van Slyke Award chief of the laboratory in the National Heart Institute, He was also a member the American Chemical Society, the American Society of Biological Chemists, American Society for Pharmacology and Experimental Therapeutics, and American Association for the Advancement of Science.

Life and career April 5, 1918: born Brooklyn, New York 1939: graduated from City College of New York 1942: M.S., New York University 1948: Ph.D., New York University 1967: the Van Slyke Award 1967: Gairdner Foundation International Award 1969: The Ames Award December 29, 1999: died

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