| No. | CAS # | Product Names | Molecular Formula |
| 1 | 520-18-3 | Kaempferol | C15H10O6 |
| 2 | 25389-94-0 | Kanamycin sulfate | C18H36N4O11.H2SO4;C18H38N4O15S |
| 3 | 1332-58-7 | Kaolin | Al203·2Si02·2H20 |
| 4 | 55965-84-9 | Kathon 886 | C4H4ClNOS |
| 5 | 65277-42-1 | Ketoconazole | C26H28Cl2N4O4 |
| 6 | 25054-06-2 | Ketonic Resin | |
| 7 | 22071-15-4 | ketoprofen | C16H14O3 |
| 8 | 85085-22-9 | Kidney Bean Extract | |
| 9 | 91053-39-3 | Kieselguhr, calcined | C72H110N20O15 |
| 10 | 1392-21-8 | Kitasamycin | C40H67NO14 |
| 11 | 143390-89-0 | Kresoxim-methyl | C18H19NO4 |