1-Piperazineethanol, 4-(1,5,b-trimethyl-1H-imidazo(4,5-b)pyrazin-2-yl)- 1H-Imidazo(4,5-b)pyrazine, 2-(4-hydroxyethylpiperazin-1-yl)-1,5,6-trimethyl- 2-(4-Hydroxyethylpiperazin-1-yl)-1,5,6-trimethyl-1H-imidazo(4,5-b)pyrazine 55635-74-0 BRN 1146205