| 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} |
| 244 | DF | .~.~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {6} |
| 254 | DF | .~.~.~.~ Chalcogen bonded directly to ring carbon of the six-membered hetero ring {2} |
| 256 | DF | .~.~.~.~.~ Benzene ring bonded directly to the chalcogen {2} |
| 257 | | .~.~.~.~.~.~ Containing -C(=X)NH-, wherein X is chalcogen and substitution may be made for hydrogen only |