US PATENT SUBCLASS 546 / 1
.~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons


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546 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  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.~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
2  DF  .~.~.~> Heavy metal or aluminum containing {8}
13  DF  .~.~.~> Boron containing
14  DF  .~.~.~> Silicon containing
15  DF  .~.~.~> Spiro {1}
21  DF  .~.~.~> Phosphorus attached directly to the six-membered hetero ring by nonionic bonding
22  DF  .~.~.~> Phosphorus attached indirectly to the six-membered hetero ring by nonionic bonding {2}
26  DF  .~.~.~> Polycyclo ring system having the six-membered hetero ring as one of the cyclos {9}
184  DF  .~.~.~> Piperidines {8}
249  DF  .~.~.~> Process of forming partially hydrogenated pyridine ring
250  DF  .~.~.~> Process of forming pyridine ring {1}
255  DF  .~.~.~> Plural pyridine or partially hydrogenated pyridine rings {6}
268.1  DF  .~.~.~> Additional hetero ring containing {4}
285  DF  .~.~.~> Polycyclo-carbocyclic ring system having at least three cyclos
286  DF  .~.~.~> Cyano bonded directly to the six-membered hetero ring {3}
290  DF  .~.~.~> Chalcogen bonded directly to ring carbon of the six-membered hetero ring {9}
304  DF  .~.~.~> Nitrogen attached directly to the six-membered hetero ring by nonionic bonding {7}
313  DF  .~.~.~> Thiocarbonyl bonded directly to the six-membered hetero ring
314  DF  .~.~.~> Carbonyl bonded directly to the six-membered hetero ring {4}
329  DF  .~.~.~> Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding {5}
339  DF  .~.~.~> Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding (e.g., sulfato betaines, etc.) {3}
345  DF  .~.~.~> Halogen attached directly to the six-membered hetero ring by nonionic bonding
346  DF  .~.~.~> Halogen attached indirectly to the six-membered hetero ring by nonionic bonding
347  DF  .~.~.~> The ring nitrogen of the six-membered hetero ring is pentavalent (e.g., quaternary pyridinium salts, etc.)
348  DF  .~.~.~> Unsubstituted or hydrocarbyl substituted only, or salt thereof {3}


DEFINITION

Classification: 546/1

Hetero ring is six-membered consisting of one nitrogen and five carbons:

(under subclass 1) Compounds under Class 540, ... which contain a six-membered hetero ring consisting of one nitrogen and five carbon atoms.

SEE OR SEARCH CLASS

588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the destruction of hazardous or toxic waste.