Isatin
| Product name | Isatin |
| CAS No. | 91-56-5 |
| Purity | ≥93% |
| Appearance | Yellowish red crystalline powder |
| Molecular formula | C8H5NO2 |
| Molecular weight | 147.13 |
| Structural formula |  |
| Physical and chemical properties | Melting point: 201-204 ℃ |
| Use | Used for the production of reducing dyes and drugs; Used as a reagent for the determination of ketones and thiophene |