502 / | HD | CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING |
100 | DF | CATALYST OR PRECURSOR THEREFOR {12} |
150 | DF | .~ Organic compound containing {13} |
152 | DF | .~.~ Organic compound including carbon-metal bond {5} |
153 | .~.~.~ Diverse metals bonded to carbon |