3-(benzothiazol-2-yl)-7-(diethylamino)-2-oxo-2H-1-benzopyran-4-carbonitrile;2H-1-Benzopyran-4-carbonitrile, 3-(2-benzothiazolyl)-7-(diethylamino)-2-oxo-;3-(2-benzothiazolyl)-7-(diethylamino)-2-oxo-2H-1-Benzopyran-4-carbonitrile
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