US PATENT SUBCLASS 564 / 269
.~.~.~ Nitrogen double bonded and two rings bonded directly to the same acyclic carbon (e.g., auramines, etc.)


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}
248  DF  .~.~ Containing nitrogen double bonded directly to carbon {8}
269.~.~.~ Nitrogen double bonded and two rings bonded directly to the same acyclic carbon (e.g., auramines, etc.)


DEFINITION

Classification: 564/269

(under subclass 248) Compounds wherein two rings are directly bonded to the same carbon which, in turn, is double bonded to an amino nitrogen, e.g., auramines.

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