Triethyl 2-phosphonopropionate
Also known as: Ethyl 2-(diethoxyphosphoryl)propanoate, 2-(Diethoxyphosphinyl)propanoic acid ethyl ester, 2-Phosphonopropionic acid triethyl ester, Diethyl 1-(ethoxycarbonyl)ethanephosphonate, Diethyl 1-(carbethoxy)ethylphosphonate, ETHYL-2-(DIETHYLPHOSPHONO)PROPANOATE, MFCD00009159, EINECS 223-033-4
Triethyl 2-phosphonopropionate (CAS 3699-66-9) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C9H19O5P and a molecular weight of 238.22 g/mol. Key properties include a boiling point of 275.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 88.9±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3699-66-9
- Jingsj CID
- J-24311-1
- Molecular Formula
- C9H19O5P
- Molecular Weight
- 238.22 g/mol
- Category
- Esters
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 275.5±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 88.9±0.0 °C |
| Exact Mass | 238.097015 |
| PSA | 71.64000 |
| LogP | 1.26 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.426 |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Triethyl 2-phosphonopropionate?
The CAS number of Triethyl 2-phosphonopropionate is 3699-66-9.
What are the molecular formula and molecular weight of Triethyl 2-phosphonopropionate?
Triethyl 2-phosphonopropionate has molecular formula C9H19O5P and molecular weight 238.22 g/mol.
Is Triethyl 2-phosphonopropionate hazardous?
Triethyl 2-phosphonopropionate has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of Triethyl 2-phosphonopropionate?
For Triethyl 2-phosphonopropionate, Upstream Products: Diethyl ethylphosphonate, Bromoethane, Ethyl 2-bromopropionate; Downstream Products: 2-Phosphonopropionic acid, (1-Aminoethyl)phosphonic Acid, Ethyl 2-[bis(2,2,2-trifluoroethoxy)phosphoryl]propanoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Triethyl 2-phosphonopropionate (CAS 3699-66-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24311-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.