2-(Butylmethylamino)-1-(2,3-dihydro-1H-inden-5-yl)ethanone maleate 55020-14-9 ETHANONE, 2-(BUTYLMETHYLAMINO)-1-(2,3-DIHYDRO-1H-INDEN-5-YL)-, (Z)-2-BUTENEDIOAT Ethanone, 2-(butylmethylamino)-1-(2,3-dihydro-1H-inden-5-yl)-, (Z)-2-butenedioate (1:1)