120551-15-7 2-(2-(5-carboxy)oxazole)-5-hydroxy-6-aminobenzofuran-N,N,O-triacetic acid 5-Oxazolecarboxylic acid, 2-(6-(bis(carboxymethyl)amino)-5-(carboxymethoxy)-2-benzofuranyl)- Furaptra Mag-fura-2