US PATENT SUBCLASS 546 / 2
.~.~.~ Heavy metal or aluminum containing


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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  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbons {24}
2.~.~.~ Heavy metal or aluminum containing {8}
3  DF  .~.~.~.~> Arsenic containing
4  DF  .~.~.~.~> The metal bonded directly to carbon, which carbon is a ring carbon of the six-membered hetero ring or which carbon is attached directly or indirectly to the six-membered hetero ring by nonionic bonding
5  DF  .~.~.~.~> The metal is bonded directly to chalcogen of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens, which group is attached directly or indirectly to the six-membered hetero ring by nonionic bonding
6  DF  .~.~.~.~> The metal is bonded directly to chalcogen which chalcogen is attached directly or indirectly to the six-membered hetero ring by nonionic bonding {1}
8  DF  .~.~.~.~> The metal is in an anion and the six-membered hetero ring is in a cation {1}
10  DF  .~.~.~.~> Polycyclo ring system having the six-membered hetero ring as one of the cyclos
11  DF  .~.~.~.~> Piperidine containing
12  DF  .~.~.~.~> Azide or acyclic nitrogen containing


DEFINITION

Classification: 546/2

Heavy metal or aluminum containing:

(under subclass 1) Compounds which include aluminum or a metal having a specific gravity greater than four.

(1) Note. Arsenic is considered a metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13, for compounds containing boron.

14, for compounds containing silicon.