英文别名2-(4-Methylphenyl)sulfonyloxyethanol; 2-HYDROXYETHYL 4-METHYLBENZENESULFONATE; Theophylline Impurity 9; 1,2-Ethanediol, 1-(4-methylbenzenesulfonate); 2-[(4-Methylbenzenesulfonyl)oxy]ethan-1-ol; 2-Hydroxyethyl-4-methyl benzene sulphonate; OH-PEG1-Tos; Doxofylline Impurity 26; ethylene glycol monotosylate; mono-tosyl ethylene glycol; 2-hydroxyethyl 4-toluenesulfonate; 2-hydroxyethyl p-toluenesulfonate; 2-hydroxyethyl tosylate; 2-(Hydroxyethyl)-p-toluolsulfonat