4-(Heptyloxy)phenol13037-86-030 % similar 4-(Hexyloxy)phenol18979-55-030 % similar 4-(Octyloxy)phenol3780-50-530 % similar Fenoterol13392-18-230 % similar (+)-Phenylpropanolamine37577-28-930 % similar (-)-Phenylpropanolamine492-41-130 % similar 4-sec-Butylphenol99-71-830 % similar