102280-38-6 2-Diethylamino-4H-naphtho(2,3-b)pyran-4-one 2-Dietilammino-4-oxo-10-metil-4H-nafto(2,3-b)pirano [Italian] 4H-NAPHTHO(2,3-b)PYRAN-4-ONE, 2-DIETHYLAMINO- K 12412