| 556 / | HD | ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES |
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| * | DD | ORGANIC COMPOUNDS (Class 532, Subclass 1) {3} |
| 1 | DF | .~ HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) {19} |
| 118 | DF | .~.~ Zinc, cadmium, or mercury containing (Zn, Cd, or Hg) {3} |
| 130 | DF | .~.~.~ Chalcogen bonded directly to the metal {2} |
| 131 |  | .~.~.~.~ The chalcogen is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens {3} |
| 132 | DF | .~.~.~.~.~> Carbocyclic ring bonded directly to the carbon of the -C(=X)X- group |
| 133 | DF | .~.~.~.~.~> The carbons of plural -C(=X)X- groups are bonded directly to each other, to the same carbon, or to a chain consisting of carbons, which carbons, which carbons may be part of a ring (e.g., zinc glutamates, etc.) |
| 134 | DF | .~.~.~.~.~> Nitrogen containing (e.g., zinc ethionates, etc.) |