text: Friedrich August Kekule von Stradonitz ( also August KekulÃ ) ( 7 September 1829 -- 13 July 1896 ) was a German organic chemist .
simplified: Friedrich August Kekule von Stradonitz ( also August KekulÃ ) ( 7 September 1829 â `` 13 July 1896 ) was a German organic chemist .