Zilpaterol hydrochloride119520-06-8100 % similar Zilpaterol117827-79-994 % similar 7-Amino-6-hydroxy-6,7,8,9-tetrahydro-2,9a-diazabenzo[cd]azulen-1(2H)-one hydrochloride1021910-71-367 % similar Procaterol hydrochloride62929-91-339 % similar 4,5-Dihydro-6-oxime-imidazo[4,5,1-jk][1]benzazepine-2,6,7(1H)-trione92260-82-736 % similar 5,6-Dihydroimidazo(4,5,1-jk)(1)benzazepine-2,7(1h,4h)-dione92260-81-635 % similar Procaterol72332-33-334 % similar N-[2-(2-Chlorophenyl)-2-hydroxyethyl]propan-2-aminium chloride6933-90-032 % similar