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Optical Brightener OB-1

Optical Brightener OB-1
Optical Brightener OB-1
Product Code : 02
Product Description

Optical Brightener OB-1

Product Description 

  • Fluorescent Whitening Agent OB-1 
  • Chemical name: 2, 2'-(1, 2-Ethenediyldi-4, 1-phenylene) bisbenzoxazole 
  • Structural formula: 
  • Molecular weight: 414.4 
  • EINECS NO.: 216-245-3 
  • C. I. no: 393   
  • Appearance: Yellowish & greener powder 
  • Melting point: 359-361C 
  • Assay: 98% min 
  • Ash: 0.1%max. 
  • Volatile Content: 0.5%max 
  • Purity: 98.0% 

Fluorescent Whitening Agent OB-1 is widely used in variety of polymer substance, especially polyester fiber, PP fiber. It also can be used in plastic material such as PP, PVC, ABS, EVA, PS, etc. 

Package: Packing in 25kg fiber drum with two liners or according to the requirement of the customers.


It needs to be declared that the above data is based on our present knowledge and experience; Owing to too many affecting factors, these data cannot be free from their check and test when processing and using the product.