(3-methylbenzyl)phosphonic acid

(3-甲基苄基)膦酸

Also known as: (3-methylbenzyl)phosphonic acid, (3-methylphenyl)methylphosphonic acid, p-[(3-methylphenyl)methyl]phosphonic acid, phosphonic acid, p-[(3-methylphenyl)methyl]-, 3-methylbenzylphosphonic acid, m-methylbenzylphosphonic acid

(3-methylbenzyl)phosphonic acid (CAS 18945-65-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H11O3P and a molecular weight of 186.14500 g/mol. It is also known as (3-methylphenyl)methylphosphonic acid, p-[(3-methylphenyl)methyl]phosphonic acid and phosphonic acid, p-[(3-methylphenyl)methyl]-. Key properties include a boiling point of 386.1ºC at 760mmHg, a density of 1.318g/cm3 and a flash point of 187.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18945-65-8
Jingsj CID
J-1476611-6
Molecular Formula
C8H11O3P
Chinese Name
(3-甲基苄基)膦酸
Molecular Weight
186.14500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point386.1ºC at 760mmHg
Density1.318g/cm3
Flash Point187.3ºC

Frequently Asked Questions

What is the CAS number of (3-methylbenzyl)phosphonic acid?

The CAS number of (3-methylbenzyl)phosphonic acid is 18945-65-8.

What are the molecular formula and molecular weight of (3-methylbenzyl)phosphonic acid?

(3-methylbenzyl)phosphonic acid has molecular formula C8H11O3P and molecular weight 186.14500 g/mol.

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

Last updated:

How to cite: Jingsj. "(3-methylbenzyl)phosphonic acid (CAS 18945-65-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1476611-6 (accessed 2026-10-25).

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