Wiktionary
acenaphthoquinone
n. (context organic compound English) A polycyclic aromatic quinone derived from acenaphthene, used as an intermediate for the manufacturing of dyes, pharmaceuticals and pesticides.
Wikipedia
Acenaphthoquinone
Acenaphthoquinone is a quinone derived from acenaphthene. It is insoluble in water, but soluble in alcohol. It is used as an intermediate for the manufacturing of dyes, pharmaceuticals and pesticides. It is also used in chemical research as a drug and therapeutic agent.
The substance is classified as an irritant. Its carcinogenic properties have not been fully investigated yet.