Kekulé von Stradonitz, Friedrich August

Kekulé von Stradonitz, Friedrich August

(frē`drĭkh ou`go͝ost kā`ko͞olā fən shträ`dōnĭts), 1829–96, German organic chemist. He was professor at Ghent (1858–65) and at Bonn from 1865. He made studies of various carbon compounds, especially benzenebenzene
, colorless, flammable, toxic liquid with a pleasant aromatic odor. It boils at 80.1°C; and solidifies at 5.5°C;. Benzene is a hydrocarbon, with formula C6H6.
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, for the molecular structure of which he developed the ring theory. This theory is of fundamental importance to modern chemistry.