| 993-07-7 | TRIMETHYLSILANE | C3H10Si |
| 993-00-0 | Chloromethyl silane | CH5 Cl Si |
| 993-10-2 | METHYLGERMANIUM TRICHLORIDE | CH3 Cl3 Ge |
| 993-11-3 | TETRAMETHYLPHOSPHONIUM IODIDE | C4H12 P . I |
| 993-02-2 | manganese(3+) acetate | C2H4 O2 . 1/3 Mn |
| 993-05-5 | ACETIC ACID, SODIUM SALT, [2-14C]- | C2H4 O2 . Na |
| 993-16-8 | METHYLTIN TRICHLORIDE | CH3 Cl3 Sn |
| 993-22-6 | Tetrabutylammonium azide | C16H36N4 |
| 993-42-0 | Ethylgermanium trichloride | C2H5Cl3Ge |
| 993-50-0 | (DIMETHYLAMINO)TRIMETHYLTIN | C5H15 N Sn |
| 993-52-2 | HEXAMETHYLDIGERMANE | C6H18 Ge2 |
| 993-62-4 | HEXAETHYLDIGERMANE | C12H30 Ge2 |
| 993-63-5 | triethyltin | C12H30Sn2 |
| 993-66-8 | TERT-BUTYL-TRIETHOXYSILANE | C10H24 O3 Si |