1611-35-4 AIDS-030603 AIDS030603 NSC324982 Xylenol Orange m-Cresolphthalexon S {[5-(3-{3-[(Bis-carboxymethyl-amino)-methyl]-4-hydroxy-5-methyl-phenyl}-1,1-dioxo-1,3-dihydro-1.lambda.6-benzo[c][1,2]oxathiol-3-yl)-2-hydroxy-3-methyl-benzyl]-carboxymethyl-amino}-acetic acid