| 514 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
|
| 1 | DF | DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29} |
| 183 | DF | .~ Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., O,S,Se or Te) or nitrogen as the only ring hetero atoms DOAI {16} |
| 449 | DF | .~.~ Oxygen containing hetero ring {4} |
| 451 |  | .~.~.~ The hetero ring is six-membered {4} |
| 452 | DF | .~.~.~.~> Plural ring oxygens in the hetero ring |
| 453 | DF | .~.~.~.~> Polycyclo ring system having the hetero ring as one of the cyclos {2} |
| 459 | DF | .~.~.~.~> Nitrogen containing |
| 460 | DF | .~.~.~.~> Chalcogen bonded directly to ring carbon of the hetero ring |