Benzylphosphonic acid

苄基磷酸

Also known as: Phenylmethanephosphonic acid, alpha-Toluenephosphonic acid, Phosphonic acid, benzyl-, (Phenylmethyl)phosphonic acid, MFCD00039519, AI3-22857, Benzyl-phosphonic acid, Benzyl-phosphonsaeure, acide benzyl phosphonique, phenylmethylphosphonic acid

Benzylphosphonic acid (CAS 6881-57-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H9O3P and a molecular weight of 172.118 g/mol. It is also known as Phenylmethanephosphonic acid, alpha-Toluenephosphonic acid and Phosphonic acid, benzyl-. Key properties include a melting point of 165-166°C, a boiling point of 378.2±35.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 182.5±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6881-57-8
Jingsj CID
J-1431319-2
Molecular Formula
C7H9O3P
Chinese Name
苄基磷酸
Molecular Weight
172.118 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point165-166°C
Boiling Point378.2±35.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point182.5±25.9 °C

Frequently Asked Questions

What is the CAS number of Benzylphosphonic acid?

The CAS number of Benzylphosphonic acid is 6881-57-8.

What are the molecular formula and molecular weight of Benzylphosphonic acid?

Benzylphosphonic acid has molecular formula C7H9O3P and molecular weight 172.118 g/mol.

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

Last updated:

How to cite: Jingsj. "Benzylphosphonic acid (CAS 6881-57-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1431319-2 (accessed 2026-10-25).

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