Outstanding whitener of the polyester and its flake. It also can be used for the polyester fiber and plastics.

Chemical name: 2,2’-(1,2-Ethenediyldi-4, 1-phenylene) bisbenzoxazole
Structure:

Formula: C₂₈H₁₈N₂ O₂

Molecular Weight: 414.4

C.I. Number: 393

CAS Number: 1533-45-5 

Appearance: yellow powder

Melting Point: 359℃

Purity: ≥98.0%

Application:
mainly be used in whitening of PET, polyester fibers and PP, as well in   whitening of Nylon during polymerization.

Recommended dosage: (based on 1000kgs raw materials)

 1.      75~200g for PP, Nylon, etc.

2.      75~300g for PET or Polyester fibers.

Packaging and storage:
25kgs in paper drum. Keep in cool and dry place, away from  light.                                    

Attention: The above information is just for reference. Customers shall adjust the formulations according to actual requirements.