| 536 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {1} |
| 1.11 | DF | .~ Carbohydrates or derivatives {15} |
| 4.1 | DF | .~.~ O- or S- Glycosides {29} |
| 7.1 | DF | .~.~.~ Oxygen containing hetero ring having 12-19 members (e.g., methymycin, carbomycin, spiramycin, etc.) {1} |
| 7.2 | DF | .~.~.~.~ Erythromycin or derivative (e.g., oleandomycin, etc.) {3} |
| 7.3 | | .~.~.~.~.~ Boron, phosphorus or sulfur containing |