103876-53-5 6-((2-Oxo-3-(1H-tetrazol-5-yl)-2H-1-benzopyran-6-yl)oxy)hexanoic acid 6-(2-Oxo-3-(1H-tetrazole-5-yl)-2H-chromene-6-yloxy)hexanoic acid Hexanoic acid, 6-((2-oxo-3-(1H-tetrazol-5-yl)-2H-1-benzopyran-6-yl)oxy)-