| 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} |
| 281 | DF | .~.~ Quaternary ammonium containing {2} |
| 282 | DF | .~.~.~ Benzene ring containing {6} |
| 285 | DF | .~.~.~.~ Hydroxy, bonded directly to carbon, or ether containing (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) {2} |
| 286 |  | .~.~.~.~.~ Polyquaternary ammonium |