Synonyms: 2-Carboxy-2′-hydroxy-5′-sulfoformazyl-benzene monosodium salt; 2-[5-(2-Hydroxy-5-sulfophenyl)-3-phenyl-1-formazyl]benzoic acid monosodium salt
Formula: C20H15N4NaO6S
Formula Weight: 462.41
CAS No.: 62625-22-3
Application: A colorimetric indicator for Zn, Cu and Hg
Other Notes: Reagent for the spectrophotometric determination of zinc1,2; Simultaneous determination of zinc and copper3; Used in automated flow injection analysis of zinc4