4-cyanophenylphosphonic acid

(4-氰基苯基)膦酸

Also known as: (4-cyanophenyl)phosphonic acid, Phosphonic acid, P-(4-cyanophenyl)-, (4-Cyano-phenyl)-phosphonic acid, NSC129453

4-cyanophenylphosphonic acid (CAS 16672-78-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6NO3P and a molecular weight of 183.10100 g/mol. It is also known as (4-cyanophenyl)phosphonic acid, Phosphonic acid, P-(4-cyanophenyl)- and (4-Cyano-phenyl)-phosphonic acid. Key properties include a boiling point of 439.6ºC at 760 mmHg, a density of 1.51g/cm3 and a flash point of 219.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16672-78-9
Jingsj CID
J-1354053-1
Molecular Formula
C7H6NO3P
Chinese Name
(4-氰基苯基)膦酸
Molecular Weight
183.10100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point439.6ºC at 760 mmHg
Density1.51g/cm3
Flash Point219.7ºC

Frequently Asked Questions

What is the CAS number of 4-cyanophenylphosphonic acid?

The CAS number of 4-cyanophenylphosphonic acid is 16672-78-9.

What are the molecular formula and molecular weight of 4-cyanophenylphosphonic acid?

4-cyanophenylphosphonic acid has molecular formula C7H6NO3P and molecular weight 183.10100 g/mol.

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

Last updated:

How to cite: Jingsj. "4-cyanophenylphosphonic acid (CAS 16672-78-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1354053-1 (accessed 2026-10-25).

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