1-((2`-(1H-Tetrazol-5-yl)-[1,1`-biphenyl]-4-yl-2,3,5,6-d4)methyl)-4-(2-hydroxypropan-2-yl)-2-propyl-1H-imidazole-5-carboxylic acid,1H-Imidazole-5-carboxylic acid,4-(1-hydroxy-1-methylethyl)-2-propyl-1-[[2`-(2H-tetrazol-5-yl)[1,1`-biphenyl]-4-yl-2,3,5,6-d4]methyl],"Labeled Olmesartan, intended for use as an internal standard for the quantification of Olmesartan by GC- or LC-mass spectrometry.",Olmesartan Stable Isotopes