Definify.com
Webster 1913 Edition
Isatin
I′sa-tin
,Noun.
[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
.]