US PATENT SUBCLASS 556 / 74
.~.~.~.~.~.~.~ Nitrogen and the metal bonded directly to the same benzene ring (e.g., arsanilic acids, etc.)

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
1  DF  .~ HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) {19}
64  DF  .~.~ Arsenic, antimony, or bismuth containing (As, Sb, or Bi) {5}
70  DF  .~.~.~ Carbon bonded directly to the metal {1}
71  DF  .~.~.~.~ Chalcogen bonded directly to the metal (e.g., arsine oxides, etc.) {1}
72  DF  .~.~.~.~.~ Plural chalcogens bonded directly to the metal {1}
73  DF  .~.~.~.~.~.~ Exactly three chalcogens bonded directly to the metal (e.g., arsonic acids, arsonates, etc.) {1}
74.~.~.~.~.~.~.~ Nitrogen and the metal bonded directly to the same benzene ring (e.g., arsanilic acids, etc.) {1}
75  DF  .~.~.~.~.~.~.~>.~ Having -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the nitrogen by acyclic nononic bonding

DEFINITION

Classification: 556/74

(under subclass 73) Compounds wherein nitrogen and the metal are bonded directly to the same benzene ring.

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