| 562 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
|
| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {41} |
| 8 | DF | .~ Phosphorus acids or salts thereof (i.e., compounds having -XH, wherein X is chalcogen, attached directly to phosphorus by nonionic bonding and wherein the hydrogen may be replaced by a substituted or unsubstituted ammonium or by a group IA or IIA light metal) {7} |
| 11 | DF | .~.~ Nitrogen attached indirectly to the phosphorus by nonionic bonding {3} |
| 12 | DF | .~.~.~ Plural phosphori attached indirectly to each other by nonionic bonding {2} |
| 14 |  | .~.~.~.~ Additional nitrogen attached indirectly to the phosphorus by nonionic bonding |