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DMI ref. omg124 Image title: Isatin | 24.65
Isatin (Indole-2,3-dione, 2:3-Indolinedione, CAS# 91-56-5) forms yellow-red crystalline needles and melts to a yellow liquid at about 200C. It is an important raw material for dye manufacture (artificial indigo, disperse dye yellows) and is used for the manufacture of pharmaceuticals.
Dark ground illumination, red filter.