1H-NAPHTHO(2,1-b)PYRAN-1-ONE, 3-(ISOPROPYLAMINO)- 3-(Isopropylamino)-1H-naphtho(2,1-b)pyran-1-one 3-Isopropilamminonafto(2,1-b)piran-1-oni [Italian] 71511-02-9 BRN 1645607