isatin

POS

Noun

HYPHEN

i=sa=tin

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CIDE DICTIONARY

isatin, n. [See Isatis.].

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. [1913 Webster]

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OXFORD DICTIONARY

isatin, n. Chem. a red crystalline derivative of indole used in the manufacture of dyes.

Etymology

L isatis woad f. Gk