for the following products
2,2'-[(1,1'-Biphenyl)-4,4'-diyldi-2,1-ethenediyl]-bis-benzenesulfonic acid disodium salt | 4,4'-bis-(2-Sulfostyryl)-biphenyl disodium salt | Fluorescent brightener 351 | Fluorescent brightener-CBS-X | Sodium 2,2'-([1,1'-biphenyl]-4,4'-diylbis(ethene-2,1-diyl))dibenzenesulfonate | Stilbene 3 and Disodium 4,4'-bis(2-sulfostyryl)biphenyl
