546 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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* | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {1} |
* | DD | .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) {1} |
1 | DF | .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24} |
26 | DF | .~.~.~ Polycyclo ring system having the six-membered hetero ring as one of the cyclos {9} |
112 | DF | .~.~.~.~ Bicyclo ring system having the six-membered hetero ring as one of the cyclos {7} |
152 | DF | .~.~.~.~.~ Quinolines (including hydrogenated) {14} |
159 | DF | .~.~.~.~.~.~ Nitrogen, other than as nitro or nitroso, attached directly to the six membered hetero ring by nonionic bonding {2} |
162 | DF | .~.~.~.~.~.~.~ Nitrogen attached indirectly to the six-membered hetero ring through the directly attached nitrogen by nonionic bonding {1} |
163 | | .~.~.~.~.~.~.~.~ Both nitrogens bonded directly to the same acyclic hydrocarbon group |