Homophthalic anhydride
高酞酸酐
Also known as: 1,3-Isochromandione, 1H-2-Benzopyran-1,3(4H)-dione, 1H-Isochromene-1,3(4H)-dione, 4H-isochromene-1,3-dione, Homophthalic acid anhydride, o-Carboxyphenylacetic anhydride
- CAS No.
- 703-59-3
- Jingsj CID
- J-15301-0
- Molecular Formula
- C9H6O3
- Chinese Name
- 高酞酸酐
- Molecular Weight
- 162.142 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 140-142 °C(lit.) |
|---|---|
| Boiling Point | 324.5±35.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 159.0±23.1 °C |
GHS Safety & Compliance
IrritantSignal word: Warning
Frequently Asked Questions
What is the CAS number of Homophthalic anhydride?
703-59-3
What are the molecular formula and molecular weight of Homophthalic anhydride?
C9H6O3, molecular weight 162.142 g/mol
Is Homophthalic anhydride hazardous?
Warning
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026