| 424 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
| 600 | DF | INORGANIC ACTIVE INGREDIENT CONTAINING {20} |
| 617 | DF | .~ Heavy metal or compound thereof {14} |
| 646 | ![]() | .~.~ Iron, cobalt, nickel, vanadium, molybdenum, or palladium {2} |
| 647 | DF | .~.~.~> Ferric |
| 648 | DF | .~.~.~> Ferrous |