| 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} |
| 194 | DF | .~.~ Phosphorus containing wherein the phosphorus is other than solely as part of an inorganic ion in an addition salt {5} |
| 195 | | .~.~.~ Hetero ring containing {2} |
| 196 | DF | .~.~.~.~> Ring chalcogen in the hetero ring (e.g., morpholines, etc.) |
| 197 | DF | .~.~.~.~> Plural ring nitrogens in the hetero ring |