(+-)-1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-(3-hydroxybutyryl)piperazine 1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-(3-hydroxy-1-oxobutyl)piperazine 1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-(3-hydroxybutyryl)piperazine 109713-79-3 HRO 2/145 Neldazosin Neldazosin [INN] Neldazosina [INN-Spanish] Neldazosine [INN-French] Neldazosinum [INN-Latin] Piperazine, 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-(3-hydroxy-1-oxobutyl)-