Dithizone ACS reagent, for spectrophotometric det. of Cd, Cu, Hg, Pb, Zn, = 98.0 TLC 60-10-6ACS reagent grade, ≥98.0% (TLC), powder, suitable for UV/Vis spectroscopy, for spectrophotometric det. of Cd, Cu, Hg, Pb, Zn CAS Number: 60-10-6; EC Number: 200-454-1; Synonyms: Diphenylthiocarbazone; Linear Formula: C6H5NHNHCSN=NC6H5 at Sigma-Aldrich 3,5-Pyrocatecholdisulfonic acid disodium salt monohydrate (Tiron) metal indicator 149-45-1metal indicator CAS Number: 149-45-1; Synonyms: 3,5-Pyrocatecholdisulfonic acid disodium salt monohydrate,1,2-Dihydroxy-3,5-benzenedisulfonic acid disodium salt, di-Sodium 4,5-dihydroxy-1,3-benzenedisulfonate, Sodium pyrocatechol-3,5-disulfonate, Tiron at Sigma-Aldrich 