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 | DF | .~.~.~ Oxygen containing {6} |
45 | DF | .~.~.~.~ Plural oxygens containing {3} |
50 | .~.~.~.~.~ Thiol or plural thioethers containing |