3-Phosphonopropionic acid

3-膦酸基丙酸

Also known as: 2-Carboxyethanephosphonic acid, 2-Carboxyethylphosphonic acid, β-Phosphonopropionic acid, 3-Phosphonopropanoic acid, CEPA

3-Phosphonopropionic acid (CAS 5962-42-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H7O5P and a molecular weight of 154.058 g/mol. It is also known as 2-Carboxyethanephosphonic acid, 2-Carboxyethylphosphonic acid and β-Phosphonopropionic acid. Key properties include a melting point of 165ºC, a boiling point of 459.8±47.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 231.9±29.3 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5962-42-5
Jingsj CID
J-12857-3
Molecular Formula
C3H7O5P
Chinese Name
3-膦酸基丙酸
Molecular Weight
154.058 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point165ºC
Boiling Point459.8±47.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point231.9±29.3 °C

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 3-Phosphonopropionic acid?

The CAS number of 3-Phosphonopropionic acid is 5962-42-5.

What are the molecular formula and molecular weight of 3-Phosphonopropionic acid?

3-Phosphonopropionic acid has molecular formula C3H7O5P and molecular weight 154.058 g/mol.

Is 3-Phosphonopropionic acid hazardous?

3-Phosphonopropionic acid has GHS signal word Danger.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-Phosphonopropionic acid (CAS 5962-42-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12857-3 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.