| 424 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
| 600 | DF | INORGANIC ACTIVE INGREDIENT CONTAINING {20} |
| 661 | DF | .~ Elemental chlorine or elemental chlorine releasing inorganic compound (e.g., chlorties, hypochlorites, etc.) {3} |
| 663 | | .~.~ Chloride {1} |
| 664 | DF | .~.~.~> Ammonium chloride |