US PATENT SUBCLASS 564 / 34
.~.~.~ Carbazides or semicarbazides (i.e., HNH-NH-CO-HNH, wherein substitution may be made for hydrogen only)

Current as of: June, 1999
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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}
32  DF  .~.~ Ureas (i.e., HNH-CO-HNH, wherein substitution may be made for hydrogen only) {9}
34.~.~.~ Carbazides or semicarbazides (i.e., HNH-NH-CO-HNH, wherein substitution may be made for hydrogen only) {3}
35  DF  .~.~.~.~> Carbonyl or sulfur attached directly to carbazide or semicarbazide nitrogen by nonionic bonding
36  DF  .~.~.~.~> Carbazones or semicarbazones (i.e., HCH=N-NH-CO-HNH, wherein substitution may be made for hydrogen only)
37  DF  .~.~.~.~> Acyclic

DEFINITION

Classification: 564/34

(under subclass 32) Compounds which are carbazides or semicarbazides containing the grouping [figure]

(1) Note. This subclass contains, for example: [figure]