Isatin Typical Properties
Item
Specifications
Appearance
Orange red crystalline
Content
≥98.0% （HPLC）
Water
≤0.5%
What is indigo?
Indigo is also known as dione indene and indoloquinone. The chemical name is indole-2,3-dione, which is orange-red monoclinic prism crystal at room temperature. It has a bitter taste. The molecular weight is 147.13. Melting point 203.5 ° C (partial sublimation). Soluble in hot water Chemicalbook, hot ethanol, benzene, acetone, slightly soluble in ether. It is easily soluble in boiling alcohol, red-brown in ether and boiling water, purple in caustic alkali solution, and turns yellow after being placed. Its alcohol solution has a very unpleasant smell. Weak alkaline, can form salt with perchloric acid.
Isatin Application
Indigo is mainly used as a dye and pharmaceutical intermediate, which can produce the drug sincofen and dye disperse yellow E-3G.
Isatin can also be used as a chemical reagent, analytical reagent, used for the analysis and determination of cuprous ion, thiol, thiophenol, thiophene, urine blue mother, etc.
Isatin Storage
keep low-temperature and keep drying
Isatin Shelf life
12 month with package
Isatin Package Size and Picture
25kg/drum
