Isatin

I"sa*tin

(?), n. [See Isatis.] (Chem.) 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.
[Written also, less properly, isatine.]

[1913 Webster]

 

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Sun 16th December 2018