1H-Benz(de)isoquinoline-2(3H)-acetamide, alpha-(4-aminobutyl)-1,3-dioxo-, monohydrobromide 81254-02-6 alpha-(4-Aminobutyl)-1,3-dioxo-1H-benz(de)isoquinoline-2(3H)-acetamide monohydrobromide