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Optical Brightener OB-1

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

Ever since our establishment in 2009, we are indulged in manufacturing and supplying excellent quality Optical Brightener OB-1. It is made with utmost care and precision at our state-of-the-art facility using premium quality raw materials. These compounds are most commonly added in laundry detergents to make clothes shine. It absorbs light in ultraviolet region and and re emit the light in blue region thus giving a shiny appearance to fabrics or papers. Offered Optical Brightener OB-1 can be availed from us in different grades and specifications as per requirements.


  • Available as yellow or greenish powder

  • Very low volatile content

  • Excellent purity


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.