| 568 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {4} |
| 18 | DF | .~ SULFUR CONTAINING {9} |
| 38 | DF | .~.~ Thioethers {5} |
| 39 | | .~.~.~ Oxygen containing {6} |
| 40 | DF | .~.~.~.~> Group IA or IIA light metal containing |
| 41 | DF | .~.~.~.~> Carbonyl containing (e.g., aldehyde containing, etc.) {1} |
| 44 | DF | .~.~.~.~> Nitrogen containing |
| 45 | DF | .~.~.~.~> Plural oxygens containing {3} |
| 51 | DF | .~.~.~.~> Oxygen bonded directly to a ring {2} |
| 55 | DF | .~.~.~.~> Hydroxy containing |