| 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} |
| 309 | DF | .~.~ Cyano or isocyano bonded directly to carbon {2} |
| 310 | ![]() | .~.~.~ Benzene ring bonded directly to the cyano or isocyano group {1} |
| 311 | DF | .~.~.~.~> Two benzene rings bonded directly to the same oxygen (e.g., phenoxyphenyl compounds, etc.) |