US PATENT SUBCLASS 568 / 824
.~.~.~.~.~ 2,6,6-trialkylcyclohexenyls (e.g., vitamin A, etc.)

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}
822  DF  .~.~.~ Six-membered alicyclic ring containing {5}
823  DF  .~.~.~.~ Unsaturation in the ring {2}
824.~.~.~.~.~ 2,6,6-trialkylcyclohexenyls (e.g., vitamin A, etc.)

DEFINITION

Classification: 568/824

2,6,6-trialkylcyclohexenyls (e.g., vitamin a, etc.):

(under subclass 823) Compounds which contain a 2,6,6-trialkylcyclohexenyl nucleus.

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