Omnistab OB

Omnistab OB

· Chemical Name:2,5-Bis(5'-tert-butyl-2-benzoxazol-2-yl)thiophene

· CAS:7128-64-5

· Molecular formula:C26H26N2O2S

· Molecular weight:430.56

Structural formula:
Omnistab OB
Applications

It is mainly used for  whitening inPVC, PS, PE, PP, ABS and other plastics and acetate fiber, paint,coatings, inks and so on. 

Specifications
ItemSpecification
AppearanceLight yellow powder
Assay99.00% min
Melting point200.00-205.00℃
Volatile0.50% max
Ash0.50% max
Transmittance450nm: 93.00% min  500nm: 95.00% min


Storage and transportation

25 KG Carton or as customers’ requirements.


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