54351-85-8

Basic information

• Product Name: 4,4'-BIS(2-DISULFONIC ACID STYRYL) BIPHENYL
• Synonyms: 4,4'-BIS(2-DISULFONIC ACID STYRYL) BIPHENYL;Opticalbrightener;4,4-BIS(2-DISULFONIC ACID STYRYL) BIPHENYL OPTICAL BRIGHTENER;WHITEXNFW;Diphenylethylene xenene
• CAS NO: 54351-85-8
• Molecular Formula: C28H22O6S2
• Molecular Weight: 518.6
• Mol File: 54351-85-8.mol
• Article Data: 1

Chemical Properties

• Appearance: Yellowish or yellowish green crystal powder
• CAS DataBase Reference: 4,4'-BIS(2-DISULFONIC ACID STYRYL) BIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-BIS(2-DISULFONIC ACID STYRYL) BIPHENYL(54351-85-8)
• EPA Substance Registry System: 4,4'-BIS(2-DISULFONIC ACID STYRYL) BIPHENYL(54351-85-8)

Safety Data

• Hazardous Substances Data: 54351-85-8(Hazardous Substances Data)

Usage

General Description

4,4'-Bis(2-disulfonic acid styryl) biphenyl is a chemical compound commonly used as a fluorescent whitening agent in various industrial applications. It is a derivative of biphenyl and contains two disulfonic acid groups and styryl moieties attached to the biphenyl structure. 4,4'-BIS(2-DISULFONIC ACID STYRYL) BIPHENYL is extensively used as a fluorescent brightener in laundry detergents, paper, textiles, and plastics to enhance the brightness and whiteness of the products. Additionally, it is also utilized in the optical brightening of various polymers and coatings to improve their reflective properties and overall appearance. However, there is limited information available on its potential health and environmental effects, and caution should be taken when handling this chemical.

Relevant articles and documents

Strong Intermolecular Electronic Coupling of Chromophores Confined in Hydrogen-Bonded Frameworks

Guanidinium organodisulfonate (GDS) hydrogen-bonded frameworks constructed from "tetris-shaped" ortho-substituted disulfonated stilbene derivatives display crystal architectures in which the stilbenes serve as pillars that connect opposing guanidinium sulfonate (GS) sheets in a continuously layered architecture while guiding the organization of the stilbene residues into packing motifs that produce unique optical properties. The constraints imposed by ortho-substitution result in a heretofore unreported topology of the pillars projecting from the two-dimensional GS sheet, while the dense packing of stilbene constituents, confined between the GS sheets, results in strong intermolecular electronic coupling. Stilbene 420 (2,2″-([1,1′-biphenyl]-4,4′-diyldi-2,1-ethenediyl)bis-benzenesulfonate) pillars pack in a face-to-face brickwork motif, producing a large bathochromic shift (～100 nm) of the absorbance and emission spectra relative to stilbene 420 in methanol. The distyrylbenzenedisufonate (2,2′-((1E,1′E)-1,4-phenylenebis(ethene-2,1-diyl))dibenzenesulfonate) pillars, which pack in a face-to-face herringbone motif between the GS sheets, afford both hypsochromic and bathochromic shifts in their absorption spectrum, indicative of an unusually large Davydov splitting. The observation of both bathochromic and hypsochromic shifts can be attributed to the herringbone arrangement, in which both transitions are allowed due to the nonzero vector sum of the transition dipoles in both states. The large magnitude of the Davydov splitting reflects the strong intermolecular coupling between the chromophores, enforced by confinement in the GS framework. The newly discovered GS architectures evoke a new design rule that permits prediction of GS topologies in the case of longer tetris-shaped pillars. (Chemical Equation Presented).