US PATENT SUBCLASS 534 / 776
.~.~.~.~.~ A ring and the additional hetero ring or a polycyclo ring system which contains the additional hetero ring as one of the cyclos are bonded directly to the same nitrogen

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

*  DD  ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8}
573  DF  .~ Azo {51}
751  DF  .~.~ Hetero ring containing {5}
753  DF  .~.~.~ Azo bonded directly to the hetero ring or to a polycyclo ring system which contains the hetero ring as one of the cyclos {11}
774  DF  .~.~.~.~ Additional hetero ring attached indirectly to the azo group by nonionic bonding {3}
776.~.~.~.~.~ A ring and the additional hetero ring or a polycyclo ring system which contains the additional hetero ring as one of the cyclos are bonded directly to the same nitrogen

DEFINITION

Classification: 534/776

(under subclass 774) Compounds wherein a ring and the additional hetero ring or a polycyclo ring system which contains the additional hetero ring as one of the cyclos are both bonded directly to the same nitrogen.

(1) Note. An example of a compound provided for herein is: [figure]