1-(o-Methoxyphenyl)-4-(3,4,5-trimethoxybenzoylethyl)piperazine hydrobromide 16785-23-2 22662-31-3 Piperazine, 1-(o-methoxyphenyl)-4-(3,4,5-trimethoxybenzoylethyl)-, hydrobromide Propiophenone, 3-(4-(o-methoxyphenyl)piperazinyl)-3',4',5'-trimethoxy-, hydrobromide