Product Name： Isatin CAS No：91-56-5Molecular Formula：C8H5NO2 Molecular Weight：147.13 Appearance：Orange-red CrystalPurity Content（HPLC）：98%min&99%minAshing：≤1.0%&0.5%(99%)Loss on Drying：≤1.0%&0.5%(99%)Melting Point：198～204℃Uasge：widely used as intermediate of medicine and other organic synthesis