Diethyl methylphosphonate
ALDRICH/268119 - 97%
Synonym: Bis(diethoxyphosphinyl)
CAS Number: 683-08-9
Empirical Formula (Hill Notation): C5H13O3P
Molecular Weight: 152.13
EC Number: 211-667-4
MDL Number: MFCD00009813
Linear Formula: CH3P(O)(OC2H5)2
Product Type: Chemical
| assay | 97% |
| bp | 194 °C (lit.) |
| density | 1.041 g/mL at 25 °C (lit.) |
| functional group | phosphonate |
| InChI | 1S/C5H13O3P/c1-4-7-9(3,6) |
| InChI key | NYYLZXREFNYPKB-UHFFFAOYSA |
| Quality Level | 100 ![]() |
| reaction suitability | reaction type: C-C Bond Formation |
| refractive index | n |
| SMILES string | CCOP(C)(=O)OCC |
| Application: | Reactant for the synthesis of: • Fluoroalkyl α- and β-aminophosphonates • Acyclic nucleoside phosphonates with branched phosphonoethoxy-Et chains as potential antivirals • Difluoromethyl arylphosphonates • Pyridone alkaloids with neuritogenic activity • Lipophilic meropenem-derived prodrugs • Phomactin cyclohexane core and diterpenoid framework • Phosphonylated peptides via solid-phase synthesis |
| Application: | Reagent employed in the synthesis of α-alkenyl, γ-hydroxyl, and dialkyl fluoroalkynyl phosphonates. |
| Packaging: | 5, 25 g in glass bottle |
| Symbol | GHS07 |
| Signal word | Warning |
| Hazard statements | H315 - H319 - H335 |
| Precautionary statements | P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | 167.0 °F - closed cup |
| Flash Point(C) | 75 °C - closed cup |
| Purity | 97% |
| bp | 194 °C (lit.) |
| Density | 1.041 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352108 |


