Benetex OB-1


Benetex OB-1 (1533-45-5) is a heat resistant and chemically stable fluorescent whitener that increases  whiteness and 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 a fluorescence process involving absorption of invisible UV light and emission of visible blue light.  Benetex OB-1 is especially useful in polyester and nylon fibers, as well as in high temperature engineering plastics.


Chemical Name:         2,2’-(1,2-ethenediyl)bis(4,1-phenylene)bisbenzoxazole

        CAS Number:             1533-45-5

Chemical Structure:

Benetex® OB-1 HP

Typical Properties    

Product Form:                 Solid

Melting Point:              >359°C

Molecular Weight:       414.4 g/mol

Product Details:  Please view our Benetex OB-1 PDF