2,2-Dimethoxyacetaldehyde
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. 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. It is classified under GHS with signal word Warning and hazard statements H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51673-84-8
- Jingsj CID
- J-22208-2
- Molecular Formula
- C4H8O3
- Molecular Weight
- 104.104 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 63.9±20.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | -18.4±8.2 °C |
| Exact Mass | 104.047340 |
| PSA | 35.53000 |
| LogP | -0.13 |
| Vapor Pressure | 167.9±0.1 mmHg at 25°C |
| Refractive Index | 1.378 |
| Additional Property | Fully miscible in water. |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
Customs & Trade Information
| HS Code | 2912499000 |
|---|---|
| Summary | 2912499000. other aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:5.5%. General tariff:30.0% |
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 and hazard statements H317 — May cause an allergic skin reaction.
Data compiled from public chemical databases such as PubChem 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-22208-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.