| 514 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
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| 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} |
| 430 | DF | .~.~ Sulfur containing hetero ring {3} |
| 432 | DF | .~.~.~ The hetero ring is six-membered {2} |
| 433 |  | .~.~.~.~ Plural hetero atoms in the hetero ring {3} |
| 434 | DF | .~.~.~.~.~> Polycyclo ring system having the hetero ring as one of the cyclos |
| 435 | DF | .~.~.~.~.~> Three or more hetero atoms in the hetero ring |
| 436 | DF | .~.~.~.~.~> Two ring sulfurs in the hetero ring |