Etomidate Impurity B; methyl 1-(1-phenylethyl)-1H-imidazole-5-carboxylate; 1-(1-Phenylethyl)-1H-imidazole-5-carboxylic Acid Methyl Ester; 1-(?-Methylbenzyl)imidazole-5-carboxylic Acid Methyl Ester; Aquacalm; Hypnodil; Methomidate; Methoxymol; Methoxymol R-7315; Methyl 1-(?-Methylbenzyl)imidazole-5-carboxylate; R 7315;