Diethyl methylphosphonate
甲基膦酸二乙酯
Also known as: Diethyl methanephosphonate, O,O-Diethyl methylphosphonate, Methylphosphonic acid diethyl ester, Diethoxymethylphosphine oxide, DEMP, EINECS 211-667-4, MFCD00009813, Phosphonic acid, methyl-, diethyl ester
- CAS No.
- 683-08-9
- Jingsj CID
- J-18569-9
- Molecular Formula
- C5H13O3P
- Chinese Name
- 甲基膦酸二乙酯
- Molecular Weight
- 152.12900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Boiling Point | 194 °C(lit.) |
|---|---|
| Density | 1.041 g/mL at 25 °C(lit.) |
| Flash Point | 168 °F |
GHS Safety & Compliance
IrritantSignal word: Warning
Frequently Asked Questions
What is the CAS number of Diethyl methylphosphonate?
683-08-9
What are the molecular formula and molecular weight of Diethyl methylphosphonate?
C5H13O3P, molecular weight 152.12900 g/mol
Is Diethyl methylphosphonate hazardous?
Warning
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026