| 562 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {41} |
| 400 | DF | .~ Carboxylic acids and salts thereof {14} |
| 512 | DF | .~.~ Acyclic {14} |
| 513 | DF | .~.~.~ Preparation from source of undetermined composition (e.g., industrial waste, etc.) {1} |
| 514 | | .~.~.~.~ Nitrogen containing acid produced |