In which century did Otto Frank make his crucial contributions?
16th Century
17th Century
19th Century
20th Century
Answer
Otto Frank was a German-American chemist who made crucial contributions to the field of organic chemistry in the 19th century. He is best known for his work on the synthesis of indigo, which he achieved in 1878. He also worked on the synthesis of other organic compounds, including coumarin and alizarin.
Unveiling the Brilliance: The Otter Frank Chronicle
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