2,2-Dimethoxyacetaldehyde

乙二醛二甲基缩醛

Also known as: Glyoxal dimethyl acetal, Dimethoxyacetaldehyde, Glyoxal 1,1-dimethyl acetal, Acetaldehyde, 2,2-dimethoxy-, 2,2-Dimethoxyacetaldehyde (60% in water)

2,2-Dimethoxyacetaldehyde (CAS 51673-84-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H8O3 and a molecular weight of 104.104 g/mol. It is also known as Glyoxal dimethyl acetal, Dimethoxyacetaldehyde and Glyoxal 1,1-dimethyl acetal. Key properties include a boiling point of 63.9±20.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of -18.4±8.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51673-84-8
Jingsj CID
J-22208-4
Molecular Formula
C4H8O3
Chinese Name
乙二醛二甲基缩醛
Molecular Weight
104.104 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point63.9±20.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point-18.4±8.2 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,2-Dimethoxyacetaldehyde?

The CAS number of 2,2-Dimethoxyacetaldehyde is 51673-84-8.

What are the molecular formula and molecular weight of 2,2-Dimethoxyacetaldehyde?

2,2-Dimethoxyacetaldehyde has molecular formula C4H8O3 and molecular weight 104.104 g/mol.

Is 2,2-Dimethoxyacetaldehyde hazardous?

2,2-Dimethoxyacetaldehyde 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-Dimethoxyacetaldehyde (CAS 51673-84-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22208-4 (accessed 2026-10-22).

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