Ferrozine monosodium salt hydrate

White to light yellow powder Soluble in water or DMSO. Chemical. CAS: 1266615-85-3 (xH2O) 63451-29-6 (H2O) 69898-45-9. Formula: C20H13N4NaO6S2 . xH2O. MW: 492.46 (anydrous basis). Ferrozine is a chelating agent for ferrous iron commonly used as a colorimetric reagent in the detection of iron. Ferrozine forms a complex with ferrous iron that can be quantified by colorimetric detection at 562nm as a measure of iron concentration. Ferrozine is used for the accurate determination of submicrogram levels of serum iron (pH 3.5-4.5, lambdamax 562nm, A 29'000) and has been used in ferrozine chromogen solutions, bioluminescence assays and in the measurement of Fe2+ concentration in the reaction medium.