| Identification | |
| Name: | 1H-2-Benzopyran-1,3,4-trione |
| Synonyms: | NSC 43641;NSC 65072; Phthalonic anhydride |
| CAS: | 6328-17-2 |
| Molecular Formula: | C9H4 O4 |
| Molecular Weight: | 0 |
| InChI: | InChI=1/C9H4O4/c10-7-5-3-1-2-4-6(5)8(11)13-9(7)12/h1-4H |
| Molecular Structure: |  |
| Properties | |
| Flash Point: | 153.9°C |
| Boiling Point: | 338.3°C at 760 mmHg |
| Density: | 1.507g/cm3 |
| Refractive index: | 1.608 |
| Flash Point: | 153.9°C |
| Safety Data | |
 |
|
