Mono- or di-oximes of quinones; quinone monooximes are tautomeric with nitrosophenols.
See: oximes, quinones
Source:
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1362 (https://doi.org/10.1351/pac199567081307)