Otto Dimroth (28 March 1872 â 16 May 1940) was a German chemist. He is known for the Dimroth rearrangement, as well as a type of condenser with an internal double spiral, the Dimroth condenser. He made pioneering contributions to organomercury chemistry.
His son was also a renowned chemist, who described the first synthesis of 3-benzoxepin.