US PATENT SUBCLASS 560 / 48
.~.~.~.~ Plural rings in acid moiety with nitrogen bonded directly to at least one of the rings

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {17}
1  DF  .~ Carboxylic acid esters {14}
8  DF  .~.~ Aromatic acid moiety {9}
19  DF  .~.~.~ Nitrogen in acid moiety other than as nitroso or isocyanate (e.g., amino acid esters, etc.) {12}
48.~.~.~.~ Plural rings in acid moiety with nitrogen bonded directly to at least one of the rings

DEFINITION

Classification: 560/48

Plural rings in acid moiety with nitrogen bonded directly to at least one of the rings:

(under subclass 19) Compounds wherein the acid radical contains more than one carbocyclic group with nitrogen directly attached to at least one carbocyclic group.

(1) Note. This subclass contains, for example: [figure] [figure]