US PATENT SUBCLASS 564 / 403
.~.~.~.~.~ In compound having plural hydroxys bonded directly to benzene ring

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37}
305  DF  .~.~ Benzene ring containing {24}
395  DF  .~.~.~ Preparing directly by amination {7}
402  DF  .~.~.~.~ By replacing hydroxy {1}
403.~.~.~.~.~ In compound having plural hydroxys bonded directly to benzene ring

DEFINITION

Classification: 564/403

(under subclass 402) Processes wherein the compound aminated contains two or more hydroxyl groups bonded directly to a benzene ring.