| 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} |
| 39 | DF | .~.~.~ Sulfur attached directly to urea nitrogen by nonionic bonding {2} |
| 40 |  | .~.~.~.~ The sulfur is part of a substituent which contains nitrogen {1} |
| 41 | DF | .~.~.~.~.~> The substituent nitrogen is the nitrogen of a benzamido group (e.g., Cl benzene-CO-NH-HCH-(O=)S(=O)-, bonded directly to urea nitrogen, etc.) |