102280-39-7 2-(N-Ethyl-N-methylamino)-4H-naphtho(2,3-b)pyran-4-one 2-(N-Etil-N-metil)ammino-4-oxo-10-metil-4H-nafto(2,3-b)pirano [Italian] 4H-NAPHTHO(2,3-b)PYRAN-4-ONE, 2-(ETHYLMETHYLAMINO)- K 12452