564 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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* | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {1} |
1 | DF | .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37} |
32 | DF | .~.~ Ureas (i.e., HNH-CO-HNH, wherein substitution may be made for hydrogen only) {9} |
44 | DF | .~.~.~ Additional carbonyl bonded directly to urea nitrogen {1} |
45 | | .~.~.~.~ The additional carbonyl is in a substituent which is acyclic {1} |
46 | DF | .~.~.~.~.~> Carbon to carbon unsaturation in the substituent |