558 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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* | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {21} |
480 | DF | .~ Nitrate esters or chalcogen analogues thereof (i.e., compounds having (X=)N(=X)-X- bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon; the X's may be the same or diverse chalcogens) {3} |
483 | DF | .~.~ Additional nitrogen or chalcogen containing {1} |
484 | DF | .~.~.~ Plural (X=)N(=X)-X- groups containing {3} |
487 |  | .~.~.~.~ Containing nitrogen bonded directly to carbon |