2-(Diethylamino)-1-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)ethanone maleate 4-(Diethylaminoacetyl)-s-hydrindacene hydrogen maleate 67367-65-1 ETHANONE, 2-(DIETHYLAMINO)-1-(1,2,3,5,6,7-HEXAHYDRO-s-INDACEN-4-YL)-, (Z)-2-BUTE Ethanone, 2-(diethylamino)-1-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)-, (Z)-2-butenedioate (1:1) VUFB-10601