2,5-Cyclohexadien-1-one, 3-hydroxy-4-hydroxyimino- 25905-65-1 3-Hydroxy-4-hydroxyimino-2,5-cyclohexadien-1-one 4-08-00-01735 (Beilstein Handbook Reference) BRN 2248693 Benzoquinone, 2-hydroxy-, 1-oxime