| 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} |
| 218 | DF | .~.~.~ Hetero ring contains at least seven members including nitrogen {2} |
| 219 | | .~.~.~.~ Additional hetero ring containing |