Product name:Optical Brightener CBS-X
Synonyms : Fluorescent Brightener 351;2,2’-([1,1’-biphenyl]-4,4’-diyldi-2,1-ethenediyl)bis-benzenesulfonicacid;2,2’- (4,4’-biphenylylenedivinylene)di-benzenesulfonicacidisodiumsalt 
Appearance: Green yellowish crystal powder

 CAS No.: 27344-41-8
Structural No.: C.I.351
Molecular formula: C₂₈H₂₀S₂O₆Na₂
Structural formula:

Molecular weight: 562.6
Appearance: green yellowish crystal powder
1% Extinction index: 1105-1181
Applications:Optical Brightening Agent CBS-X can be used in detergent industry and soap industry.
Package: Packed in 25kgs fiber drum with double PE liners, or according to customers' request