| 564 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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| * | 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} |
| 336 | DF | .~.~.~ Amino nitrogen attached to aryl ring or ring system by an acyclic carbon or chain {11} |
| 384 | DF | .~.~.~.~ The aryl ring or ring system and amino nitrogen are bonded directly to the same acyclic carbon, which carbon additionally has only hydrogen or acyclic hydrocarbyl substituents bonded directly thereto {6} |
| 388 |  | .~.~.~.~.~ Plural amino methylene groups bonded directly to the same benzene ring |