Summary: Dr. Paul Ehrlich was the German physician who developed the first synthetic antimicrobial drug, 606 or Salvarsan. The film describes how Ehrlich first became interested in the properties of the then-new synthetic dyes and had an intuition that they could be useful in the diagnosis of bacterial diseases... (imdb)

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Genre: Drama

Country: USA

Directed By: William Dieterle

Written By: Norman Burnstine, Heinz Herald

Starring: Otto Kruger, Edward G. Robinson, Ruth Gordon, Maria Ouspenskaya, Donald Crisp, Montagu Love

More information at the Internet Movie Database