Triethyl 2-phosphonobutyrate
Also known as: Butanoic acid, 2-(diethoxyphosphinyl)-, ethyl ester, Ethyl 2-(diethoxyphosphinyl)butanoate, Ethyl 2-(diethoxyphosphoryl)butanoate, Diethyl 1-(ethoxycarbonyl)propanephosphonate, 2-Phosphonobutyric acid triethyl ester, NSC 22423, MFCD00041347
Triethyl 2-phosphonobutyrate (CAS 17145-91-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H21O5P and a molecular weight of 252.24500 g/mol. Key properties include a boiling point of 152-154ºC (14 torr), a density of 1.064 and a flash point of 158.3ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17145-91-4
- Jingsj CID
- J-2971-0
- Molecular Formula
- C10H21O5P
- Molecular Weight
- 252.24500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 152-154ºC (14 torr) |
|---|---|
| Density | 1.064 |
| Flash Point | 158.3ºC |
| Exact Mass | 252.11300 |
| PSA | 71.64000 |
| LogP | 2.59420 |
| Appearance | Liquid | Clear colorless |
| Vapor Pressure | 0.000443mmHg at 25°C |
| Refractive Index | n20/D 1.432(lit.) |
| Additional Property | Not miscible or difficult to mix with water. |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory 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-phosphonobutyrate?
The CAS number of Triethyl 2-phosphonobutyrate is 17145-91-4.
What are the molecular formula and molecular weight of Triethyl 2-phosphonobutyrate?
Triethyl 2-phosphonobutyrate has molecular formula C10H21O5P and molecular weight 252.24500 g/mol.
Is Triethyl 2-phosphonobutyrate hazardous?
Triethyl 2-phosphonobutyrate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
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-phosphonobutyrate (CAS 17145-91-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-2971-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.