. "1922Z"^^ . "1854-09-15Z"^^ . . . "Sandmeyer, Traugott"@en . . . . . "Traugott Sandmeyer (September 15, 1854 \u2013 April 9, 1922) was a Swiss chemist after whom the Sandmeyer reaction, which he discovered 1884, was named. He became a professor of organic chemistry, although he never graduated with a degree in chemistry."@en . . "Traugott Sandmeyer"@en . . . . . "Swiss chemical engineer" . "1922-04-09Z"^^ . . "1854Z"^^ .