Isatin [ 91-56-5 ]

Chemical properties: single salmon-pink over prism crystallization. Melting point 203.5 ℃ (partial sublimation). Soluble in hot ethanol, slightly soluble in ether, soluble in hot water, benzene, acetone, soluble in alkali metal hydroxide oxide. Solution a purple, after leaving become yellow, alkaline very weak. Has a bitter taste.

The goods used dyes and pharmaceutical intermediates and used in the production of drugs can be scattered Finn, dye essien 3G; yellow E - In chemical analysis is to measure the copper ions, mercaptan, [b] thiophene, urine blue female reagents.