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2,2-Bis(hydroxymethyl)propionic acid

2,2-二羟甲基丙酸

Also known as: 2,2-Bis(hydroxymethyl)propanoic acid, 3-Hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid, 3-Hydroxy-2-hydroxymethyl-2-methylpropionic acid, Dimethylolpropionic acid, 2,2-Dimethylolpropionic acid, Bis-MPA, DMPA, dihydroxypivalic acid, α,α-Dimethylolpropionic acid

2,2-Bis(hydroxymethyl)propionic acid (CAS 4767-03-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10O4 and a molecular weight of 134.130 g/mol. It is also known as 2,2-Bis(hydroxymethyl)propanoic acid, 3-Hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid and 3-Hydroxy-2-hydroxymethyl-2-methylpropionic acid. Key properties include a melting point of 189-191 °C(lit.), a boiling point of 366.7±32.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 189.7±21.6 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4767-03-7
Jingsj CID
J-1488864-9
Molecular Formula
C5H10O4
Chinese Name
2,2-二羟甲基丙酸
Molecular Weight
134.130 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point189-191 °C(lit.)
Boiling Point366.7±32.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point189.7±21.6 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,2-Bis(hydroxymethyl)propionic acid?

The CAS number of 2,2-Bis(hydroxymethyl)propionic acid is 4767-03-7.

What are the molecular formula and molecular weight of 2,2-Bis(hydroxymethyl)propionic acid?

2,2-Bis(hydroxymethyl)propionic acid has molecular formula C5H10O4 and molecular weight 134.130 g/mol.

Is 2,2-Bis(hydroxymethyl)propionic acid hazardous?

2,2-Bis(hydroxymethyl)propionic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2,2-Bis(hydroxymethyl)propionic acid (CAS 4767-03-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1488864-9 (accessed 2026-10-25).

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