| 514 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
| 1 | DF | DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29} |
| 75 | DF | .~ Phosphorus containing other than solely as part of an inorganic ion in an addition salt DOAI {22} |
| 99 | | .~.~ Oxygen containing hetero ring {2} |
| 100 | DF | .~.~.~> Polycyclo ring system having the hetero ring as one of the cyclos |
| 101 | DF | .~.~.~> Two or more oxygen in the hetero ring |