| 514 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
| 1 | DF | DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29} |
| 75 | DF | .~ Phosphorus containing other than solely as part of an inorganic ion in an addition salt DOAI {22} |
| 131 | DF | .~.~ Nitro group bonded to a carbon {1} |
| 132 | DF | .~.~.~ Nitro group is directly bonded to a benzene ring which benzene ring is either bonded directly bonded to phosphorus or indirectly bonded to phosphorus through a chalcogen {1} |
| 133 | | .~.~.~.~ Two or more such benzene rings |