George Rosenkranz ( born `` György Rosenkranz '' , August 20 , 1916 ) is a pioneering scientist in the field of steroid chemistry , who used native Mexican plant sources as raw materials .
George Rosenkranz ( born `` György Rosenkranz '' , August 20 , 1916 ) is a Hungarian-born Mexican scientist in the field of steroid chemistry . He used native Mexican plant sources as raw materials .