3-(Hydroxyphenylphosphinyl)propanoic acid

2-羧乙基苯基次膦酸

Also known as: 3-(Hydroxyphenylphosphinyl)propanoic acid, 3-HPP, CEPPA, 2-Carboxyethyl(phenyl)phosphinic acid, 3-[Hydroxy(phenyl)phosphoryl]propanoic acid, Flame retardant CEPPA, 3-Hydroxyphenylphosphinyl-propanoic acid

3-(Hydroxyphenylphosphinyl)propanoic acid (CAS 14657-64-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H11O4P and a molecular weight of 214.155 g/mol. It is also known as 3-HPP, CEPPA and 2-Carboxyethyl(phenyl)phosphinic acid. Key properties include a melting point of 152ºC, a boiling point of 526.6±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 272.3±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14657-64-8
Jingsj CID
J-1041160-3
Molecular Formula
C9H11O4P
Chinese Name
2-羧乙基苯基次膦酸
Molecular Weight
214.155 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point152ºC
Boiling Point526.6±42.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point272.3±27.9 °C

Frequently Asked Questions

What is the CAS number of 3-(Hydroxyphenylphosphinyl)propanoic acid?

The CAS number of 3-(Hydroxyphenylphosphinyl)propanoic acid is 14657-64-8.

What are the molecular formula and molecular weight of 3-(Hydroxyphenylphosphinyl)propanoic acid?

3-(Hydroxyphenylphosphinyl)propanoic acid has molecular formula C9H11O4P and molecular weight 214.155 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(Hydroxyphenylphosphinyl)propanoic acid (CAS 14657-64-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1041160-3 (accessed 2026-10-25).

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