|Eugen Baumann (1846 - 1896)|
Eugen Baumann was born in Wurtemberg in 1846. He studied the sciences at Stuttgart Polytechnicum and then served as an apprentice apothecary working for his father. In 1870 he passed the pharmacists' examination at Tubingen. It was in Tubingen that he first met Felix Hoppe-Seyler who had a major influence on Baumann's career. It was as assistant to Hoppe-Seyler that Baumann obtained his doctor's degree at Tubingen in 1872 with a dissertation on vinyl compounds. He moved to Strassburg with Hoppe-Seyler in 1876 and took charge of the chemistry laboratory at DuBois Reymond's physiological institute in Berlin in 1877. In 1883 he moved to Freiburg where he stayed until his death.
Baumann's interest in the formation of sulfates in the body led to the finding that urinary ethereal sulfates were related to putrefactive decomposition occurring in the intestine. When intestinal putrefaction was suppressed with calomel or iodoform the sulfates in the urine were greatly diminished. In their studies on bromobenzene, where sulfates were major excretion products, Baumann and Preusse also described the formation of bromophenylmercapturic acid. Five years later Baumann reported the structure of mercapturic acids as consisting of acetyl derivatives of cysteine conjugates.
Ref: "Professor Eugen Baumann" L.B.Mendel, Science, 5: PP. 51-531897