US PATENT SUBCLASS 534 / 853
.~.~.~.~.~.~.~ The -C(=X)X- is in a -C00H group (H of OH may be replaced by the ammonium ion or a Group IA or IIA light metal)

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}
838  DF  .~.~ Exactly one azo group containing or azo attached indirectly to an additional azo group by ionic bonding {3}
839  DF  .~.~.~ Plural benzene rings bonded directly to the azo group {5}
843  DF  .~.~.~.~ Each of the benzene rings is monocyclic {3}
850  DF  .~.~.~.~.~ Containing -C(=X)-, wherein X is chalcogen {3}
852  DF  .~.~.~.~.~.~ The -C(=X)- is in a -C(=X)X- group, wherein the X's may be the same or diverse chalcogens {2}
853.~.~.~.~.~.~.~ The -C(=X)X- is in a -C00H group (H of OH may be replaced by the ammonium ion or a Group IA or IIA light metal)

DEFINITION

Classification: 534/853

(under subclass 852) Compounds wherein the --X- is in a --OH group, wherein H of the -OH may be replaced by the ammonium ion or a Group IA or IIA light metal.

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