| 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} |
| 463 | DF | .~.~ Acyclic {16} |
| 503 | 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) {3} |
| 506 |  | .~.~.~.~ Polyhydroxy (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) {1} |
| 507 | DF | .~.~.~.~.~> Plural hydroxys in the same substituent on the amino nitrogen (H of -OH may be replaced by a substituted or unsubstituted ammonium ion or a Group IA or IIA light metal) |