| 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 |  | .~.~ Hetero ring containing {11} |
| 210 | DF | .~.~.~> Acyclic urea or thiourea bonded directly to ring carbon of the hetero ring (i.e., HNH-C(=X)-NH-, wherein X is sulfur or oxygen and substitution may be made for hydrogen only) {2} |
| 218 | DF | .~.~.~> Hetero ring contains at least seven members including nitrogen {2} |
| 221 | DF | .~.~.~> Hetero ring is six-membered including nitrogen and sulfur {1} |
| 223 | DF | .~.~.~> Hetero ring is six-membered including nitrogen and oxygen {1} |
| 227 | DF | .~.~.~> Hetero ring is six-membered consisting of three nitrogens and three carbons {4} |
| 235 | DF | .~.~.~> Hetero ring is six-membered consisting of two nitrogens and four carbons (e.g., 1,4-diazines, etc.) {2} |
| 244 | DF | .~.~.~> Hetero ring is six-membered consisting of one nitrogen and five carbons {6} |
| 261 | DF | .~.~.~> Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen {10} |
| 283 | DF | .~.~.~> Hetero ring is five-membered consisting of one nitrogen and four carbons {2} |
| 288 | DF | .~.~.~> Sulfur containing hetero ring {1} |
| 291 | DF | .~.~.~> Oxygen containing hetero ring {2} |