| 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 | ![]() | .~.~ Cyano or isocyano bonded directly to carbon {2} |
| 310 | DF | .~.~.~> Benzene ring bonded directly to the cyano or isocyano group {1} |
| 312 | DF | .~.~.~> Nitrogen, other than as nitro or nitroso, attached indirectly to the cyano or isocyano group by nonionic bonding |