| 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} |
| 80 | DF | .~.~ Sulfonamides (i.e., Q-(O=)S(=O)-HNH, wherein Q is a substituent and wherein any substituent replacing one or both hydrogens shown will be referred to as E) {4} |
| 95 | DF | .~.~.~ Substituent Q is acyclic {2} |
| 98 |  | .~.~.~.~ Substituent Q is alkyl {1} |
| 99 | DF | .~.~.~.~.~> Benzene ring in a substituent E |