| 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} |
| 17 |  | .~.~ Thioureas (i.e., HNH-C(=S)-HNH, wherein substitution may be made for hydrogen only) {7} |
| 18 | DF | .~.~.~> Thiocarbazides or thiosemicarbazides (i.e. HNH-NH-C(=S)-HNH, wherein the N bonded directly to the thiourea N is an amino N and substitution may be made for hydrogen only) {1} |
| 22 | DF | .~.~.~> Thiobiurets (i.e., HNH-C(=S)-NH-C(=X)-HNH, wherein X is S or O and substitution may be made for hydrogen only) |
| 23 | DF | .~.~.~> Carbonyl, sulfur, or cyano attached directly to thiourea nitrogen by nonionic bonding |
| 24 | DF | .~.~.~> Processes utilizing carbon disulfide |
| 25 | DF | .~.~.~> Processes utilizing cyano containing compound |
| 26 | DF | .~.~.~> Benzene ring containing {3} |
| 30 | DF | .~.~.~> Acyclic {1} |