Optical brightener

whitexnfw ; 4.4-bis(2-disulfonic acid styryl) biphenyl ; 4,4'-bis[2-(2-sulfophenyl)ethenyl]biphenyl ; 4,4'-bis(2-disulfonic acid styryl) biphenyl ; 2,2'-([1,1'-biphenyl]-4,4'-diyldi-2,1-ethenediyl)bis-benzenesulfonic acid ; 4,4-bis(2-disulfonic acid styryl) biphenyl optical brightener ; diphenylethylene xenene ; fluorescent brightener cbs-x ; opticalbrightener ; c.i. fluorescent brightener 351