1,1-Dimethoxyacetone
Also known as: Pyruvaldehyde dimethyl acetal, Methylglyoxal 1,1-dimethyl acetal, 1,1-Dimethoxy-2-propanone, Dimethoxymethyl methyl ketone, 2-Propanone, 1,1-dimethoxy-
1,1-Dimethoxyacetone (CAS 6342-56-9) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C5H10O3 and a molecular weight of 118.131 g/mol. Key properties include a melting point of -57ºC, a boiling point of 145.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 37.8±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6342-56-9
- Jingsj CID
- J-21499-3
- Molecular Formula
- C5H10O3
- Molecular Weight
- 118.131 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -57ºC |
|---|---|
| Boiling Point | 145.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 37.8±0.0 °C |
| Exact Mass | 118.062996 |
| PSA | 35.53000 |
| LogP | 0.09 |
| Vapor Pressure | 5.0±0.2 mmHg at 25°C |
| Refractive Index | 1.389 |
| Additional Property | MISCIBLE |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2914509090 |
|---|---|
| Summary | HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1,1-Dimethoxyacetone?
The CAS number of 1,1-Dimethoxyacetone is 6342-56-9.
What are the molecular formula and molecular weight of 1,1-Dimethoxyacetone?
1,1-Dimethoxyacetone has molecular formula C5H10O3 and molecular weight 118.131 g/mol.
Is 1,1-Dimethoxyacetone hazardous?
1,1-Dimethoxyacetone has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1,1-Dimethoxyacetone?
For 1,1-Dimethoxyacetone, Upstream Products: Methanol, Methylglyoxal, Methylmagnesium bromide; Downstream Products: Methyl 4,4-dimethoxy-3-oxobutanoate, 4-(Dimethoxymethyl)-2-(methylthio)pyrimidine, 4-(dimethoxymethyl)-2-(propylsulfanyl)pyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,1-Dimethoxyacetone (CAS 6342-56-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21499-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.