| Name | trihexylphosphine oxide |
| Synonyms | Ai3-51003 Nsc 41936 Brn 1782166 Einecs 221-392-1 trihexyl-phosphine oxid trihexylphosphane oxide trihexylphosphine oxide Phosphine oxide, trihexyl- |
| CAS | 3084-48-8 |
| EINECS | 2213921 |
| InChI | InChI=1/C18H39OP/c1-4-7-10-13-16-20(19,17-14-11-8-5-2)18-15-12-9-6-3/h4-18H2,1-3H3 |
| Molecular Formula | C18H39OP |
| Molar Mass | 302.475421 |
| Density | 0.864±0.06 g/cm3(Predicted) |
| Melting Point | 34-35 °C |
| Boling Point | 163°C |
| Flash Point | 212.9°C |
| Vapor Presure | 3.79E-07mmHg at 25°C |
| Refractive Index | 1.44 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |