- Chemical Name:2,5-Bis(5- tert - butyl- benzoxazol- 2- yl) thiophene
- Functions:Optical Brightener
- CAS Number:7128-64-5
- Compatible Polymers & Resins:Polystyrenes (PS), Polyvinyl Chloride (PVC), Polyethylenes (PE)
Benetex OB (7128-64-5)is a heat resistant, solvent soluble, chemically stable fluorescent whitener that provides brighter looking colors. It is used to offset the yellowness of a polymer and to yield a whiter appearance. Optical brighteners create brilliance by absorbing UV light, modifying the wavelength of the light and then emitting the light in a fluorescent fashion. Benetex OB can also be used as a tracer in various applications and as an optical brightener in thermoplastics, coatings, printing inks, dyes, man-made fibers, waxes, fats, and oils.