Chemical Name: 2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole)

CAS No.: 7128-64-5

Chemcial Structure:

Appearance: Yellow powder

Assay: ≥99%

Package: 25KG Drum


BIOTEX® OB 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. BIOTEX® 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. BIOTEX® OB can be used to impart excellent brightness to various thermoplastics, including: polyvinyl chloride, polyethylene, polypropylene, cellulose acetate, polystyrene, polycarbonate, acrylics, polyolefins, adhesives, polyurethane, linear polyester, and polyamides.

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