| 998-40-3 | Tributylphosphine | C12H27P |
| 998-30-1 | Triethoxysilane | C6H16O3Si |
| 998-06-1 | 1,2-DILINOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE | C44H80 N O8 P |
| 998-95-8 | 4-CHLOROHEPTANE | C7H15 Cl |
| 998-00-5 | TETRAISOBUTYLDIALUMINOXANE | C16H36 Al2 O |
| 998-27-6 | Germane, tripropyl- | C9H22Ge |
| 998-29-8 | TRI-N-PROPYLSILANE | C9H21Si |
| 998-35-6 | 5-propylnonane | C12H26 |
| 998-39-0 | TRI-N-BUTYLGERMANE | C12H28 Ge |
| 998-41-4 | TRIBUTYLSILANE | C12H28 Si |
| 998-61-8 | Silane, dibutylethyl- | C10H24Si |
| 998-62-9 | Heptanal, 2-butyl- | C11H22O |
| 998-93-6 | 4-BROMOHEPTANE | C7H15Br |