Hugo Weidel (13 November 1849 – 7 June 1899) was an Austrian chemist known for inventing Weidel's reaction and describing the structure of organic compound niacin.
For his achievements, Weidel received the Lieben Prize in 1880.
August Steininger (1873 – before 1937), see: Manfred Neureiter: Lexikon der Exlibriskünstler. book-on-demand.de, 1998, ISBN 3868054626, p. 420 (online) Source: Almanach der Kaiserlichen Akademie der Wissenschaften. Volume 50, Wien 1900, plate after page 290 License: CC-PD-Mark PD-Art (PD-old default) PD-Art (PD-old-70)