4,4-Dimethoxy-2-butanone
Also known as: Acetylacetaldehyde dimethyl acetal, 1,1-Dimethoxy-3-butanone, 3-Ketobutyraldehyde dimethyl acetal, 3-Oxobutyraldehyde dimethyl acetal, 4,4-Dimethoxybutan-2-one, Acetoacetaldehyde dimethyl acetal, 1,1-Dimethoxybutan-3-one, β-Oxobutyraldehyde dimethyl acetal
4,4-Dimethoxy-2-butanone (CAS 5436-21-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H12O3 and a molecular weight of 132.158 g/mol. Key properties include a melting point of -82 °C, a boiling point of 172.1±20.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 49.4±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5436-21-5
- Jingsj CID
- J-45285-4
- Molecular Formula
- C6H12O3
- Molecular Weight
- 132.158 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -82 °C |
|---|---|
| Boiling Point | 172.1±20.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 49.4±0.0 °C |
| Exact Mass | 132.078644 |
| PSA | 35.53000 |
| LogP | 0.33 |
| Vapor Pressure | 1.4±0.3 mmHg at 25°C |
| Refractive Index | 1.399 |
| Additional Property | decomposes |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
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 4,4-Dimethoxy-2-butanone?
The CAS number of 4,4-Dimethoxy-2-butanone is 5436-21-5.
What are the molecular formula and molecular weight of 4,4-Dimethoxy-2-butanone?
4,4-Dimethoxy-2-butanone has molecular formula C6H12O3 and molecular weight 132.158 g/mol.
Is 4,4-Dimethoxy-2-butanone hazardous?
4,4-Dimethoxy-2-butanone has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
What are the upstream and downstream products of 4,4-Dimethoxy-2-butanone?
For 4,4-Dimethoxy-2-butanone, Upstream Products: trimethyl(prop-1-en-2-yloxy)silane, Trimethyl orthoformate, Methanol; Downstream Products: 4,4-dimethoxy-2-methylbutan-2-ol, 3-Cyano-6-methyl-2(1H)-pyridinone, 4-Methoxy-3-buten-2-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,4-Dimethoxy-2-butanone (CAS 5436-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45285-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.