| 560 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {17} |
| 1 | DF | .~ Carboxylic acid esters {14} |
| 129 | DF | .~.~ Acyclic acid moiety {9} |
| 231 | DD | .~.~.~ Unsubstituted acids of the acetic series {16} |
| 250 | DD | .~.~.~.~ Nitrogen in alcohol moiety other than as nitro, nitroso or isocyanate {3} |
| 251 | | .~.~.~.~.~ Plural nitrogens in alcohol moiety |