564 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
* | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {1} |
1 | DF | .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37} |
305 | DF | .~.~ Benzene ring containing {24} |
415 | DF | .~.~.~ Forming amine group directly by reduction {1} |
416 | DF | .~.~.~.~ Of nitro or nitroso {4} |
418 | .~.~.~.~.~ Preparing compound which contains hydroxy, bonded directly to carbon, or ether |