• C.A.S. No.
• 165660-27-5
• M.F.
• C₂₀H₁₂N₂O₁₁Na₂S₃
• M.W.
• 598.50 gm/mole

Specifications:

• Solubility 0.1 % ( Water )
• Clear solution
• Suitability for calcium determination
• To passes test
• Absorption maximum (Ammonia buffer pH 12.0 + 2ml 0.05M E.D.T.A.)
• 645-650nm
• Absorptivity (A1% 1cm at λmax, in ammonia Buffer pH 12.0 + 2ml 0.05M E.D.T.A.)
• > 350
• Loss on drying (110^oC)
• < 5 %
• Suitability for microscopy
• To passes test