Erik Christian Clemmensen
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Erik Christian Clemmensen was a Danish-American chemist. He was born in 1876 in Odense, Denmark, and died on May 21, 1941.
Clemmensen studied at Polytechnical University in Copenhagen. He emigrated to the United States in 1900 and worked in the pharmaceutical industry. For the invention of the Clemmensen reduction, he received his Ph.D. in 1913 from the University of Copenhagen.