558 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
* | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {21} |
303 | DF | .~ Nitriles (i.e., compounds having cyano bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {21} |
411 | DF | .~.~ Benzene ring bonded directly to the cyano group {6} |
425 | .~.~.~ Halogen attached indirectly to the cyano group by nonionic bonding |