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
S. John Jacob as an INC candidate in 2011 but switched his allegiance to the Tamil Maanila Congress (TMC) when G. K. Vasan revived it in 2014. Assigned to the Killiyur constituency once again, his was one of 26 names put forward by the TMC to contest the 2016 state assembly elections as part of an alliance with the People's Welfare Front and Desiya Murpokku Dravida Kazhagam. However, one week later it was announced that D. Kumaradas would contest the seat for the TMC instead. The constituency was won by the INC candidate, S. Rajesh Kumar. S. John Jacob S. John Jacob (born