Diethyl (hydroxymethyl)phosphonate

羟甲基膦酸二乙酯

Also known as: (Hydroxymethyl)phosphonic acid diethyl ester, Diethyl phosphonomethanol, Diethyl (hydroxymethyl)phosphonate, tech., DIETHYL HYDROXYMETHYLPHOSPHONATE, Diethyl P-(hydroxymethyl)phosphonate, AURORA KA-1421, 4-Hydroxymethyldiethylphosphonate, Phosphonic acid, (hydroxymethyl)-, diethyl ester, Phosphonic acid, P-(hydroxymethyl)-, diethyl ester, diethyl hydroxy-methanephosphonate, diethyl hydroxymethylphosphonate

Diethyl (hydroxymethyl)phosphonate (CAS 3084-40-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H13O4P and a molecular weight of 168.128 g/mol. It is also known as (Hydroxymethyl)phosphonic acid diethyl ester, Diethyl phosphonomethanol and Diethyl (hydroxymethyl)phosphonate, tech.. Key properties include a boiling point of 239.5±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 98.7±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3084-40-0
Jingsj CID
J-44847-7
Molecular Formula
C5H13O4P
Chinese Name
羟甲基膦酸二乙酯
Molecular Weight
168.128 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point239.5±23.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point98.7±22.6 °C

Frequently Asked Questions

What is the CAS number of Diethyl (hydroxymethyl)phosphonate?

The CAS number of Diethyl (hydroxymethyl)phosphonate is 3084-40-0.

What are the molecular formula and molecular weight of Diethyl (hydroxymethyl)phosphonate?

Diethyl (hydroxymethyl)phosphonate has molecular formula C5H13O4P and molecular weight 168.128 g/mol.

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

Last updated:

How to cite: Jingsj. "Diethyl (hydroxymethyl)phosphonate (CAS 3084-40-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44847-7 (accessed 2026-10-22).

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