of condensed quinone ring systems formed by two rings

Full Title

Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones > the carbon skeleton containing carbon atoms of quinone rings > having amino groups bound to carbon atoms of quinone rings or of condensed ring systems containing quinone rings > of condensed quinone ring systems formed by two rings