2-phosphonobutyric acid
2-膦酰基丁酸
Also known as: 2-phosphonobutanoic acid, 2-Phosphonobutyric acid, 2-Phosphonobutanoic acid, 97%, Butanoic acid, 2-phosphono-, MFCD00041416
2-phosphonobutyric acid (CAS 4378-40-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H9O5P and a molecular weight of 168.08500 g/mol. It is also known as 2-phosphonobutanoic acid, 2-Phosphonobutyric acid and 2-Phosphonobutanoic acid, 97%. Key properties include a melting point of 123-127ºC, a boiling point of 422.3ºC at 760 mmHg, a density of 1.546g/cm3 and a flash point of 209.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4378-40-9
- Jingsj CID
- J-1379200-2
- Molecular Formula
- C4H9O5P
- Chinese Name
- 2-膦酰基丁酸
- Molecular Weight
- 168.08500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 123-127ºC |
|---|---|
| Boiling Point | 422.3ºC at 760 mmHg |
| Density | 1.546g/cm3 |
| Flash Point | 209.2ºC |
Frequently Asked Questions
What is the CAS number of 2-phosphonobutyric acid?
The CAS number of 2-phosphonobutyric acid is 4378-40-9.
What are the molecular formula and molecular weight of 2-phosphonobutyric acid?
2-phosphonobutyric acid has molecular formula C4H9O5P and molecular weight 168.08500 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-phosphonobutyric acid (CAS 4378-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1379200-2 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.