Nitro PAPS is a highly sensitive colometric reagent for Fe(II) detection. This regent is suitable for the determination of Fe(II) in serum and can also be used to determine micro molar levels of Cu, Zn, Ni and Co.
2-(5 Nitro-2-pyridylazo)-5-[N-n-propyl)-N(3-sulfopropyl)amino]phenol
disodium salt, dihydrate. Store at ambient temperature, ships at ambient temperature.