Professor François Diederich (born 9 July 1952 in Ettelbruck) is a Luxembourgian chemist specializing in organic chemistry.

Mieczysław Józef Mąkosza (born 16 November 1934) is a Polish chemist specializing in organic synthesis and investigation of organic mechanisms.

Anatoly Babko (15 October 1905 - 7 January 1968) was a famous Ukrainian chemist, specializing in analytical chemistry and in the chemistry of complex compounds.

Maria Magdalena Zaharescu (born 1938) is a Romanian chemist, specializing in the physical chemistry of oxide systems.

Leiv Kristen Sydnes (born 9 July 1948) is a Norwegian chemist, specializing in organic chemistry.

He is a physical chemist, specializing in spectroscopy of small molecules in the gas phase.

Steven Dale Ittel (born 1946 in Hamilton, Ohio) is an American chemist specializing in organometallic chemistry and homogeneous catalysis.

James M. Tour is a synthetic organic chemist, specializing in nanotechnology.

Dr. Warren, a chemist specializing in aircraft fuels, was involved in a professional committee discussing the possible causes.

The expert witnesses who appeared in Mr. Yousef's defense yesterday included John Hoffman of Detroit, a chemist specializing in explosives.