21 June] 1876 – 5 August 1950) was a Soviet and Russian organic chemist, a prominent researcher in terpene chemistry, the cracking of petrochemicals, and rearrangement of camphenes.

Since 1905, he has worked at the department as a supernumerary laboratory assistant, helping the professor conduct practical classes in qualitative analysis and organic chemistry.

Since 1910, Nametkin combined teaching at the university with work at the Moscow Higher Women Courses (Moskovskie vysshie zhenskie kursy – MVZhK), where he was invited as an assistant in the department of organic chemistry.

In 1911, Nametkin, together with a group of professors and teachers, left the Imperial Moscow University in protest against the policy of the Minister of National Education L. A. Kasso.

In the very same 1911, he successfully defended his master’s thesis at the Saint Petersburg Imperial University, “On the question of the effect of nitric acid on saturated hydrocarbons,” and in 1912, on the recommendation of N. D. Zelinsky, he was elected professor of the MVZhK in the Department of Organic Chemistry.

In March 1917, he defended his doctoral thesis on the topic: “Research on bicyclic compounds” (Issledovania iz oblasti bitsiklicheskikh soedineny) and returned to Moscow University, where he began to teach a special course called “Chemistry of alicyclic compounds and essential oils”, and later a course in organic chemistry.

In 1924, Nametkin, due to being too busy, which did not allow him to fully engage in scientific research, left the rector’s position, continuing to work at the second Moscow State University as a professor.

The department he headed carried out studies on the chemical composition of oil and gas in the USSR, paraffins and ceresins.

Since 1930, Nametkin became one of the leading professors at MITHT, created on the basis of the chemical faculty of the second Moscow State University.

In 1939, after the death of the founder of IGI I. M. Gubkin, he was appointed director of the institute, retaining the leadership of the laboratory.

During the war, Nametkin also headed the oil section of the Academy of Sciences committee for the mobilization of resources of the Middle Volga and Kama regions for the defense needs of the USSR.

Member of the editorial board of the Journal of General Chemistry (Zhurnal obschej himii) S. S. Nametkin died on August 5, 1950.

Graduation thesis (Imperial Moscow University, 1902): “Hydrocarbons of Caucasian oil, their properties and chemical reactions”; master's thesis (defended at the St. Petersburg Imperial University, 1911): “On the question of the effect of nitric acid on saturated hydrocarbons”; doctoral dissertation (defended at the Petrograd Imperial University, 1916): “Research on bicyclic compounds” (through nitration using the Konovalov reaction, he established the structure of many bicyclic hydrocarbons).

[14][15] Nametkin studied the composition and properties of oil and gas from various fields of the country, developed approaches to solving the problems of petrochemical synthesis, in particular the oxidation of paraffin into alcohols and aldehydes and the production of detergents.

S. S. Nametkin wrote more than 1000 scientific works, including: He was married to Lydia Nikolaevna Lyapunova (Nametkina), sister of the railway engineer Andrei Nikolaevich Lyapunov (1880-1923).

At the Institute of Petrochemical Synthesis, named after A. V. Topchiev, RAS there is a memorial office of academician S. S. Nametkin.