Optical Brightener CBS-X (C.I. 351)

Optical Brightener CBS-X  (C.I. 351) 1、Iterm name:            Sodium salt of 4.4-bis(2-disulfonic acid styryl)biphenyl 2、Specifications

  • Model: Optical Brightener Odyssey CBS-X (C.I. 351)

Optical Brightener CBS-X  (C.I. 351)


1Iterm name:
           Sodium salt of 4.4-bis(2-disulfonic acid styryl)biphenyl


           Molecular Formula:                      C28H20O6 S2Na2

           Molecular Weight:                       562.6

           CAS No.:                             27344-41-8

           Appearance:                              Yellowish or Yellowish Green granule or powder

           Max. Absorption Wavelength:    348-350nm

      Active Content:                   100%

Extinction Index:                  1105-1181(E1%/cm)

 Solubility in water:                 25 : 25g/L;  70: 100g/L;  95: 300g/L

Water insoluble:                    0.5% Max

Ironic character:                    Anion



Optical Brightener CBS-X is Mainly used in increasing whiteness of detergent, soap and extensively used in synthetic washing powder, especially suitable for liquid detergent. It can also be used directly in whiting cotton, silk, woven, and paper etc.

CBS-X has perfect durability against chlorine/oxygen bleaching, strong whitening strength, and good solubility in water under low temperature.

Typical Feature:  Convenient and Effective.


4Application: %W/W

     Conventional detergent powders  0.05-0.25    Compact detergent powder  0.10-0.40

  Unstructured liquid detergent    0.05-0.40    Structured liquid detergent  0.05-0.15

Soap bars                                        0.02-0.05    Detergent bars           0.05-0.15

  Industrial detergent            0.20-1.00     Cream                                0.05-0.15



Please mix thoroughly to obtain best effect.


6Safety and Stock:

Keeping in stock as ordinary chemicals. Wear protective goggles and gloves while applying. Avoid direct contact with skin and eyes. Soap clean if skin contaminated.



25kg/fiber drum with PE liner.