John Jacob Abel the position of chair of the department until he retired at the age of 75 in 1932. Ever since his early years in Europe, Abel showed great interest in isolating pure form of internal gland hormones. The first work that led to his international reputation as a pharmacologist and biochemist was the isolation of epinephrine from adrenal medulla. However, he was only able to isolate a monobenzoyl derivative of epinephrine. While he was improving his processes on decomposing the benzoyl derivative to obtain salts of epinephrine using saponification, a Japanese chemist J. Takamine, who had visited his lab, was able
Abel Seyler the Younger His father was also a prominent figure in German freemasonry in the 18th century. In his first marriage, he had two daughters. After the death of his first wife, he married Caroline (Augusta Louise) Klügel, a daughter of the mathematician and physicist Georg Simon Klügel, and they had one son, the priest Georg Seyler. The principal founder of biochemistry and molecular biology, Felix Hoppe-Seyler, was an adopted son of his son. Abel Seyler the Younger Abel Jacob Gerhard Seyler (1756 – 1805), also known as Abel Seyler the Younger, was a German scholar, pharmacist, freemason and a member of the