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Atomfair 5-Nitro-2-[2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid 4,4′-Dinitrostilbene-2,2′-disulfonic acid C14H10N2O10S2

Description 5-Nitro-2-[2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid (CAS No. 128-42-7) is a high-purity sulfonated nitroaromatic compound with the molecular formula C14H10N2O10S2. This yellow crystalline powder is a derivative of stilbene disulfonic acid, featuring dual nitro and sulfonic acid functional groups that confer unique reactivity and solubility properties. With a molecular weight of 430.37 g/mol, this compound is extensively utilized as a key intermediate in organic synthesis, particularly in the production of optical brighteners, dyes, and fluorescent whitening agents. Its high solubility in polar solvents like water and DMSO makes it ideal for aqueous-phase reactions. Our product is rigorously tested for purity (>98% by HPLC)…

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Description

Description

5-Nitro-2-[2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid (CAS No. 128-42-7) is a high-purity sulfonated nitroaromatic compound with the molecular formula C14H10N2O10S2. This yellow crystalline powder is a derivative of stilbene disulfonic acid, featuring dual nitro and sulfonic acid functional groups that confer unique reactivity and solubility properties. With a molecular weight of 430.37 g/mol, this compound is extensively utilized as a key intermediate in organic synthesis, particularly in the production of optical brighteners, dyes, and fluorescent whitening agents. Its high solubility in polar solvents like water and DMSO makes it ideal for aqueous-phase reactions. Our product is rigorously tested for purity (>98% by HPLC) and is supplied with comprehensive analytical documentation including 1H NMR and FTIR spectra for verification. Suitable for research in photochemistry, material science, and as a building block for advanced organic materials.

  • CAS No: 128-42-7
  • Molecular Formula: C14H10N2O10S2
  • Molecular Weight: 430.4
  • Exact Mass: 429.97768687
  • Monoisotopic Mass: 429.97768687
  • IUPAC Name: 5-nitro-2-[2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid
  • SMILES: C1=CC(=C(C=C1[N+](=O)[O-])S(=O)(=O)O)C=CC2=C(C=C(C=C2)[N+](=O)[O-])S(=O)(=O)O
  • Synonyms: 5-nitro-2-[2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid, 4,4/’-Dinitrostilbene-2,2/’-disulfonic acid, CHEBI:34663, CBDivE_011453, CHEMBL3306254

Application

This compound serves as a critical intermediate in the synthesis of stilbene-based optical brighteners used in paper, textile, and detergent industries. Researchers employ it as a fluorescent probe due to its conjugated system and electron-withdrawing nitro/sulfonate groups. The compound’s unique structure facilitates studies in electron transfer processes and nonlinear optical materials. In material science, it’s utilized for developing sulfonated polymers with enhanced ion-exchange properties.

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