534 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
* | DD | ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8} |
550 | DF | .~ Diazoamino (e.g., triazenes, etc.) {5} |
553 | ![]() | .~.~ Noncarbon atom double or triple bonded and the diazoamino group bonded directly to the same acyclic carbon |