548 / | 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) {4} |
100 | DF | .~.~ Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) {18} |
262.2 | DF | .~.~.~ 1,2,4-triazoles (including hydrogenated) {13} |
266.2 | | .~.~.~.~ Additional unsaturated hetero ring attached directly or indirectly to the triazole ring by nonionic bonding {2} |
266.4 | DF | .~.~.~.~.~> The additional unsaturated hetero ring is one of the cyclos of a polycyclo ring system (except alkylenedioxyphenyl) |
266.6 | DF | .~.~.~.~.~> The additional unsaturated hetero ring and the triazole ring are attached to the same acyclic atom or to the same acyclic chain |