US PATENT SUBCLASS 534 / 765
.~.~.~.~ Additional hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to the azo group

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}
765.~.~.~.~ Additional hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to the azo group {2}
766  DF  .~.~.~.~.~> The hetero ring is six-membered and contains nitrogen (e.g., pyridine, etc.) {2}
769  DF  .~.~.~.~.~> Pyrazole (including hydrogenated)

DEFINITION

Classification: 534/765

(under subclass 753) Compounds in which an additional hetero ring or polycyclo ring system having a hetero ring as one of the cyclos is bonded directly to the azo group.

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