1,2-Naphthalic anhydride
1,2-萘二酸酐
Also known as: 1,2-Naphthalenedicarboxylic anhydride, Naphtho[1,2-c]furan-1,3-dione, benzo[e][2]benzofuran-1,3-dione, benzo[e]isobenzofuran-1,3-dione
1,2-Naphthalic anhydride (CAS 5343-99-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H6O3 and a molecular weight of 198.17400 g/mol. It is also known as 1,2-Naphthalenedicarboxylic anhydride, Naphtho[1,2-c]furan-1,3-dione and benzo[e][2]benzofuran-1,3-dione. Key properties include a melting point of 170ºC, a boiling point of 401.9ºC at 760 mmHg, a density of 1.449g/cm3 and a flash point of 203.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5343-99-7
- Jingsj CID
- J-26184-1
- Molecular Formula
- C12H6O3
- Chinese Name
- 1,2-萘二酸酐
- Molecular Weight
- 198.17400 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 170ºC |
|---|---|
| Boiling Point | 401.9ºC at 760 mmHg |
| Density | 1.449g/cm3 |
| Flash Point | 203.1ºC |
Frequently Asked Questions
What is the CAS number of 1,2-Naphthalic anhydride?
The CAS number of 1,2-Naphthalic anhydride is 5343-99-7.
What are the molecular formula and molecular weight of 1,2-Naphthalic anhydride?
1,2-Naphthalic anhydride has molecular formula C12H6O3 and molecular weight 198.17400 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2-Naphthalic anhydride (CAS 5343-99-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26184-1 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.