3-Hydroxy-4[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid tetrasodium salt

Ref. 3D-FH46942

Product Information

• Name: 3-Hydroxy-4[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid tetrasodium salt
• Synonyms: Ponceau SCI 27195
• Brand: Biosynth
• Description: 3-Hydroxy-4[2-sulfo-4-(4-sulfophenylazo)phenylazo]-2,7-naphthalenedisulfonic acid tetrasodium salt is a chemical compound that has been used in the diagnosis of proteinuria. It reacts with the α1-acid glycoprotein to form a ponceau dye. The 3HSA can be detected by fluorescence probe, which binds to the sulfonate group on the dye. The reaction mechanism of 3HSA is shown below:; ; 3HSA + α1AG → ponceau dye + H+ + AG ; ; The chemical properties of 3HSA are as follows:; ; pK = 12.6 ; logP = 2.6 ; Baume = 13.6 ; Tm = -5°C ; ΔG° (298 K) = -0.8 kJ/mol

Chemical properties

• Molecular weight: 760.57 g/mol
• Formula: C₂₂H₁₂N₄O₁₃S₄Na₄
• Purity: Min. 95%
• Color/Form: Red Powder