• Optical brightener OB

Optical brightener OB

  • C.I.Fluorescent Brightener 184
  • C.I.515245
  • CAS: 7128-64-5
  • Molecular Formula: C26H26N2O2S
  • Formula Weight: 430.56

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Appearance: Light yellow or milk white powder

Shade: Similar to standard

Purity: ≥99%

Melting point: 201-205℃

Solubility: Hardly soluble in water, but soluble in paraffin, mineral oils and ordinary organic solvents.


1.Optical brightener OB is a kind of benzoxazole compound,

2. It is odorless, hard to dissolve in water, soluble in paraffin, fat, mineral oil, wax and common organic solvents.


A good optical brightener agent for PVC, PS, PE, PP, ABS, ther-moplastic plastics,   

Acetate fiber, paint, coating and printing ink, etc.


Packed in 25kgs Fiber Drum

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  • Solution for ink, coating, plastics and textiles with 20 years business experience.
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