1) Compound used in making dyes 2) Dye substance 3) Orange-red dye stuff
Found on
https://www.crosswordclues.com/clue/isatin
Isatin or 1``H``-indole-2,3-dione is an indole derivative. The compound was first obtained by Erdmann and Laurent in 1841 as a product from the oxidation of indigo dye by nitric acid and chromic acids. The compound is found in many plants, such as Isatis tinctoria, Calanthe discolor and in Couroupita guianensis. Schiff bases of isatin are inve...
Found on
http://en.wikipedia.org/wiki/Isatin
• (n.) An orange-red crystalline substance, C8H5NO2, obtained by the oxidation of indigo blue. It is also produced from certain derivatives of benzoic acid, and is one important source of artificial indigo.
Found on
http://thinkexist.com/dictionary/meaning/isatin/
I'sa·tin noun [ See
Isatis .]
(Chemistry) An orange-red crystalline substance, C
8 H
5 NO
2 , obtained by the oxidation of indigo blue. It is also produced from certain derivatives of benzoic acid, and is one important source of artificial indigo. [ Written ...
Found on
http://www.encyclo.co.uk/webster/I/100
a yellowish-red or orange, crystalline, water-soluble solid, CHNO, used chiefly in the synthesis of vat dyes.
Found on
https://www.infoplease.com/dictionary/isatin
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