US PATENT SUBCLASS 568 / 706
.~.~.~.~.~ Phenols (H of -OH may be replaced by a Group IA or IIA light metal)

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
700  DF  .~.~ Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) {10}
704  DF  .~.~.~ Nitrogen containing {3}
705  DF  .~.~.~.~ Benzene ring containing {1}
706.~.~.~.~.~ Phenols (H of -OH may be replaced by a Group IA or IIA light metal) {4}
707  DF  .~.~.~.~.~.~> Plural rings containing
708  DF  .~.~.~.~.~.~> Purification or recovery
709  DF  .~.~.~.~.~.~> Halogen containing
710  DF  .~.~.~.~.~.~> Polynitro {1}

DEFINITION

Classification: 568/706

Phenols (H of -OH may be replaced by a group IA or IIA light metal):

(under subclass 705) Compounds wherein the benzene ring has an -OH or an -OM group bonded directly to the ring.