544 / | 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 having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) {6} |
180 | DF | .~.~.~ Triazines {11} |
194 | | .~.~.~.~ Substituent nitrogen bonded directly to carbon of the triazine ring {5} |
195 | DF | .~.~.~.~.~> Phosphorus containing |
196 | DF | .~.~.~.~.~> Three substituent nitrogens bonded directly to the three carbons of the triazine ring {3} |
204 | DF | .~.~.~.~.~> Two substituent nitrogens bonded directly to two carbons of the triazine ring {3} |
211 | DF | .~.~.~.~.~> Additional ring containing {1} |
213 | DF | .~.~.~.~.~> Sulfur containing |