| 504 / | HD | PLANT PROTECTING AND REGULATING COMPOSITIONS |
| 116 | DF | PLANT GROWTH REGULATING COMPOSITIONS (E.G., HERBICIDES, ETC.) {9} |
| 189 | DF | .~ Organic active compound containing {19} |
| 209 | DF | .~.~ Hetero ring containing {11} |
| 291 | DF | .~.~.~ Oxygen containing hetero ring {2} |
| 294 | | .~.~.~.~ The hetero ring is five-membered {3} |
| 295 | DF | .~.~.~.~.~> Plural ring oxygens in the hetero ring {1} |
| 297 | DF | .~.~.~.~.~> Polycyclo ring system having the hetero ring as one of cyclos {1} |
| 299 | DF | .~.~.~.~.~> Chalcogen or -C(=X)-, wherein X is chalcogen, bonded directly to the hetero ring |