Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate
Also known as: Methyl isodehydroacetate, Methyl isodehydracetate, isodehydroacetic acid methyl ester, methyl 2,4-dimethyl-6-oxopyran-3-carboxylate, 2H-Pyran-5-carboxylic acid, 4,6-dimethyl-2-oxo-, methyl ester
Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate (CAS 41264-06-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H10O4 and a molecular weight of 182.173 g/mol. Key properties include a melting point of 68-70 °C(lit.), a boiling point of 300.3±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 139.3±18.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 41264-06-6
- Jingsj CID
- J-35809-8
- Molecular Formula
- C9H10O4
- Molecular Weight
- 182.173 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 68-70 °C(lit.) |
|---|---|
| Boiling Point | 300.3±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 139.3±18.8 °C |
| Exact Mass | 182.057907 |
| PSA | 56.51000 |
| LogP | 0.52 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.495 |
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate?
The CAS number of Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate is 41264-06-6.
What are the molecular formula and molecular weight of Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate?
Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate has molecular formula C9H10O4 and molecular weight 182.173 g/mol.
What are the upstream and downstream products of Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate?
For Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate, Upstream Products: Methyl acetoacetate, Methyl 2-butynoate, Isodehydroacetic acid; Downstream Products: Isodehydroacetic acid, Dimethyl 3-methylglutaconate, Methyl 2,6-dimethylbenzoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate (CAS 41264-06-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35809-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.