| 564 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
|
| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {1} |
| 1 | DF | .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37} |
| 305 | DF | .~.~ Benzene ring containing {24} |
| 431 | DF | .~.~.~ Two carbocyclic rings, at least one of which is benzene, bonded directly to the same nitrogen {2} |
| 432 |  | .~.~.~.~ Condensation products and processes of acyclic ketone and compound which contains two benzene rings bonded directly to the same nitrogen |