4-methyl-2H-pyran-2,6(3H)-dione
Also known as: 3-methylpent-2-ene-1,5-dioic acid anhydride, 3-methylglutaconic anhydride, Glutaconic anhydride, 3-methyl-, NSC 176171, 4-methyl-3,6-dihydro-2H-pyran-2,6-dione, 4-methyl-3H-pyran-2,6-dione, 5,6-dihydro-4-methyl-2H-pyran-2,6-dione, 2H-Pyran-2,6(3H)-dione, 4-methyl-
4-methyl-2H-pyran-2,6(3H)-dione (CAS 67116-19-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H6O3 and a molecular weight of 126.11000 g/mol. Key properties include a boiling point of 249.3ºC at 760 mmHg, a density of 1.239g/cm3 and a flash point of 116.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 67116-19-2
- Jingsj CID
- J-1180114-2
- Molecular Formula
- C6H6O3
- Molecular Weight
- 126.11000 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 249.3ºC at 760 mmHg |
|---|---|
| Density | 1.239g/cm3 |
| Flash Point | 116.9ºC |
| Exact Mass | 126.03200 |
| PSA | 43.37000 |
| LogP | 0.40620 |
| Refractive Index | 1.486 |
Frequently Asked Questions
What is the CAS number of 4-methyl-2H-pyran-2,6(3H)-dione?
The CAS number of 4-methyl-2H-pyran-2,6(3H)-dione is 67116-19-2.
What are the molecular formula and molecular weight of 4-methyl-2H-pyran-2,6(3H)-dione?
4-methyl-2H-pyran-2,6(3H)-dione has molecular formula C6H6O3 and molecular weight 126.11000 g/mol.
What are the upstream and downstream products of 4-methyl-2H-pyran-2,6(3H)-dione?
For 4-methyl-2H-pyran-2,6(3H)-dione, Upstream Products: 3-hydroxy-3-methylglutaric acid, Diethyl 3-hydroxy-3-methylglutarate, 4-methylhepta-1,6-dien-4-ol; Downstream Products: Chrysophanol.
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-methyl-2H-pyran-2,6(3H)-dione (CAS 67116-19-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180114-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.