Description

1,10-Phenanthrolinedisulfonic acid, 4,7-diphenyl-, disodium salt (CAS No. 53744-42-6) is a high-purity, water-soluble organic compound with the molecular formula C₂₄H₁₄N₂Na₂O₆S₂. This disodium salt derivative of bathophenanthrolinedisulfonate is widely utilized as a chelating agent and redox-sensitive fluorescent probe in biochemical and analytical applications. Its structure features a 1,10-phenanthroline core with sulfonated phenyl groups at the 4,7-positions, enhancing solubility and metal-binding affinity. Ideal for spectrophotometric detection of iron (Fe²⁺), this reagent forms stable, colored complexes for sensitive quantification. Suitable for research, diagnostics, and industrial applications, it is supplied as a crystalline powder with ≥95% purity, ensuring reproducibility in experiments. Store in a cool, dry place protected from light.

Properties

• CAS Number: 53744-42-6
• Complexity: 811
• IUPAC Name: disodium;4-[7-(4-sulfonatophenyl)-1,10-phenanthrolin-4-yl]benzenesulfonate
• InChI: InChI=1S/C24H16N2O6S2.2Na/c27-33(28,29)17-5-1-15(2-6-17)19-11-13-25-23-21(19)9-10-22-20(12-14-26-24(22)23)16-3-7-18(8-4-16)34(30,31)32;;/h1-14H,(H,27,28,29)(H,30,31,32);;/q;2*+1/p-2
• InChI Key: PCNDSIWXTYFWIA-UHFFFAOYSA-L
• Exact Mass: 536.00886708
• Molecular Formula: C24H14N2Na2O6S2
• Molecular Weight: 536.5
• SMILES: C1=CC(=CC=C1C2=C3C=CC4=C(C=CN=C4C3=NC=C2)C5=CC=C(C=C5)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
• Topological: 157
• Monoisotopic Mass: 536.00886708
• Synonyms: 53744-42-6, Sodium 4,4′-(1,10-phenanthroline-4,7-diyl)dibenzenesulfonate, 1,10-Phenanthrolinedisulfonic acid, 4,7-diphenyl-, disodium salt, Disodium bathophenanthrolinedisulfonate, 4,7-Diphenyl-1,10-phenanthrolinium di(sodiosulphonate), disodium;4-[7-(4-sulfonatophenyl)-1,10-phenanthrolin-4-yl]benzenesulfonate, MFCD00038854, 4,7-Bis(4-sulfophenyl)-1,10-phenanthroline disodium salt, bathophenanthroline disulfonic acid disodium salt hydrate, disodium 4,7-diphenyl-1,10-phenanthroline 4′,4”-disulfonate, Bathophenanthrolinedisulfonic acid disodium salt hydrate [for Determination of Ferrous Ion], disodium 4-[7-(4-sulfonatophenyl)-1,10-phenanthrolin-4-yl]benzene-1-sulfonate, EINECS 258-152-0, bathophenanthroline disulfonic acid disodium salt, disodium 4,4′-(1,10-phenanthroline-4,7-diyl)dibenzenesulfonate, EINECS 258-740-7, SCHEMBL1502442, CHEBI:78157, PCNDSIWXTYFWIA-UHFFFAOYSA-L, DTXSID801336016, 1,10-Phenanthroline, 4,7-di(phenylsulfonic acid)-, disodium salt, 4,7-Di(4-phenylsulfonic acid)-1,10-phenanthroline, disodium salt, Disodium 4,4′-(1,10-phenanthroline-4,7-diyl)bis(benzenesulphonate), 1,10-Phenanthrolinedisulfonic acid, 4,7-diphenyl-, sodium salt (1:2), AKOS022174836, FB60366, Benzenesulfonic acid, 4,4′-(1,10-phenanthroline-4,7-diyl)bis-, disodium salt, Benzenesulfonic acid, 4,4′-(1,10-phenanthroline-4,7-diyl)bis-, sodium salt (1:2), BS-53710, SY069436, DB-050435, DB-316010, B0989, NS00056767, ST51039862, T71026, Q27147660, Sodium 4,4?-(1,10-Phenanthroline-4,7-diyl)dibenZenesulfonate, sodium 4,7-diphenyl-1,10-phenanthroline-1,2(10H)-disulfonate, 4,7-diphenyl-1,10-phenanthroline 4′,4”-disulfonic acid disodium salt, Benzenesulfonic acid, 4,4a(2)-(1,10-phenanthroline-4,7-diyl)bis-, sodium salt (1:2), Sodium 4,4 inverted exclamation mark -(1,10-Phenanthroline-4,7-diyl)dibenzenesulfonate, 4-[7-(4-sulfophenyl)pyridino[3,2-h]quinolin-4-yl]benzenesulfonic acid, sodium salt, sodium salt

Application

This compound is primarily used as a colorimetric indicator for iron (Fe²⁺) in biological and environmental samples, forming a distinctive red complex detectable at 535 nm. It also serves as a fluorescent probe in oxidative stress studies due to its redox-sensitive properties. In biochemistry, it aids in metal ion chelation for enzyme inhibition assays and electron transfer research.

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