1H-2-Benzopyran-1,3,4-trione
1H-2-苯并吡喃-1,3,4-三酮
Also known as: Isochroman-1,3,4-trione, Phthalonic anhydride, 1H-2-Benzopyran-1,3,4-trione (8CI,9CI), NSC 43641, NSC 65072
1H-2-Benzopyran-1,3,4-trione (CAS 6328-17-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H4O4 and a molecular weight of 176.12600 g/mol. It is also known as Isochroman-1,3,4-trione, Phthalonic anhydride and 1H-2-Benzopyran-1,3,4-trione (8CI,9CI). Key properties include a boiling point of 338.3ºC at 760 mmHg, a density of 1.507g/cm3 and a flash point of 153.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6328-17-2
- Jingsj CID
- J-893815-4
- Molecular Formula
- C9H4O4
- Chinese Name
- 1H-2-苯并吡喃-1,3,4-三酮
- Molecular Weight
- 176.12600 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 338.3ºC at 760 mmHg |
|---|---|
| Density | 1.507g/cm3 |
| Flash Point | 153.9ºC |
Frequently Asked Questions
What is the CAS number of 1H-2-Benzopyran-1,3,4-trione?
The CAS number of 1H-2-Benzopyran-1,3,4-trione is 6328-17-2.
What are the molecular formula and molecular weight of 1H-2-Benzopyran-1,3,4-trione?
1H-2-Benzopyran-1,3,4-trione has molecular formula C9H4O4 and molecular weight 176.12600 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-2-Benzopyran-1,3,4-trione (CAS 6328-17-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-893815-4 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.