| 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} | 
| 123 | DF | .~.~ Carboxamides (i.e., Q-CO-HNH, wherein Q is a substituent having carbon bonded directly to the carbonyl or is hydrogen and wherein any substituent replacing one or both hydrogens shown will be referred to as E) {14} | 
| 152 |  | .~.~.~ Plural carboxamide groups containing or containing plural carbonyls bonded directly to the same nitrogen {4} | 
| 153 | DF | .~.~.~.~> Three or more carboxamide groups | 
| 154 | DF | .~.~.~.~> Sulfur containing | 
| 155 | DF | .~.~.~.~> Benzene ring containing {3} | 
| 159 | DF | .~.~.~.~> Acyclic {1} |