| 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} |
| 192 | DF | .~.~.~ Substituent Q is acyclic {6} |
| 215 | DF | .~.~.~.~ Q is hydrogen or a lower saturated alkyl substituent {3} |
| 217 | DF | .~.~.~.~.~ Ring in a substituent E {1} |
| 218 | DF | .~.~.~.~.~.~ Benzene ring in a substituent E {3} |
| 221 | DF | .~.~.~.~.~.~.~ Plural rings in a substituent E {1} |
| 222 |  | .~.~.~.~.~.~.~.~ Polycyclo ring system in a substituent E |