Disodium 2,2'-[biphenyl-4,4'-diyldiethene-2,1-diyl]dibenzenesulphonate, also known as Disodium 4,4'-bis(2-sulphonatostyryl)biphenyl or Disodium 4,4'-bis[2-(2-sulphonatophenyl)vinyl]biphenyl, is an optical brightener. Disodium-4-4-bis-2-sulfostyryl-biphenyl is a yellow free flowing fine granule wh... Read More