US PATENT SUBCLASS 540 / 133
.~.~.~.~.~ Nitrogen bonded directly to the sulfonyl group

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS {6}
121  DF  .~.~ Azaporphyrins {1}
122  DF  .~.~.~ Phthalocyanines {8}
131  DF  .~.~.~.~ Sulfonyl bonded directly to ring carbon of the phthalocyanine ring system {2}
133.~.~.~.~.~ Nitrogen bonded directly to the sulfonyl group {1}
134  DF  .~.~.~.~.~.~> Additional nitrogen in the sulfonyl containing substituent

DEFINITION

Classification: 540/133

(under subclass 131) Compounds where nitrogen is bonded directly to the - - group.

(1) Note. The structure below is an example of a compound provided for herein, wherein CuPc is a copper phthalocyanine radical. [figure]