2-Oxo-2H-pyran-6-carboxylic acid
Also known as: 2H-Pyran-2-one-6-carboxylic acid, 2-Pyrone-6-carboxylic acid, 6-Carboxypyrone-2, 6-Oxo-6H-pyran-2-carboxylic acid, 6-Oxopyran-2-carboxylic acid, Pyrone-6-carboxylic acid
2-Oxo-2H-pyran-6-carboxylic acid (CAS 672-67-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H4O4 and a molecular weight of 140.09400 g/mol. Key properties include a boiling point of 353.2ºC at 760 mmHg, a density of 1.542 g/cm3 and a flash point of 159.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 672-67-3
- Jingsj CID
- J-1445743-3
- Molecular Formula
- C6H4O4
- Molecular Weight
- 140.09400 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 353.2ºC at 760 mmHg |
|---|---|
| Density | 1.542 g/cm3 |
| Flash Point | 159.4ºC |
| Exact Mass | 140.01100 |
| PSA | 67.51000 |
| LogP | 0.33800 |
| Refractive Index | 1.577 |
Frequently Asked Questions
What is the CAS number of 2-Oxo-2H-pyran-6-carboxylic acid?
The CAS number of 2-Oxo-2H-pyran-6-carboxylic acid is 672-67-3.
What are the molecular formula and molecular weight of 2-Oxo-2H-pyran-6-carboxylic acid?
2-Oxo-2H-pyran-6-carboxylic acid has molecular formula C6H4O4 and molecular weight 140.09400 g/mol.
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-Oxo-2H-pyran-6-carboxylic acid (CAS 672-67-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1445743-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.