514 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
1 | DF | DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29} |
150 | DF | .~ Acyclic nitrogen double bonded to acyclic nitrogen, acyclic nitrogen triple bonded to acyclic nitrogen or azide DOAI {1} |
151 | .~.~ Acyclic C-N=N-N containing |