US PATENT SUBCLASS 568 / 939
.~.~.~.~ Nitro bonded directly to benzene ring


Current as of: June, 1999
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568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
924  DF  .~.~ Nitro containing (including aci forms) {6}
927  DF  .~.~.~ Benzene ring containing {4}
939.~.~.~.~ Nitro bonded directly to benzene ring {1}
940  DF  .~.~.~.~.~> Methyl bonded directly to benzene ring (e.g., nitroxylene, etc.)


DEFINITION

Classification: 568/939

(under subclass 927) Compounds wherein the -NO2[end subscrpt] group is directly bonded to the benzene ring.