PRODUCT Properties
| Melting point: | 270° |
| Boiling point: | 316.6°C (rough estimate) |
| Density | 1.3023 (rough estimate) |
| refractive index | 1.7080 (estimate) |
| pka | 2.25±0.10(Predicted) |



![1,3-Dioxo-1H,3H-benzo[de]isochromene-6,7-dicarboxylicacid](https://img.chemicalbook.com/CAS/GIF/52671-72-4.gif)

