OPTICAL BRIGHTENER OB-1 (CAS:1533-45-5)

OPTICAL BRIGHTENER OB-1

CAS No.[1533-45-5]  2,2′-(vinylenedi-p-phenylene)bisbenzoxazole

Optical Brightener OB-1 is excellent oxazole type brightener, Mainly used in whitening of polyester and ABS, PS, HIPS, PA, PC, PP, EVA, rigid PVC etc., also used as nylon fluorescent brightener.

Recommended concentrations：0.005-0.2% depend on the application and degree of desired whiteness.

FDA cleared for use in all polymers

C₂₈H₁₈N₂O₂

Synonym name

Fluorescent Brightener 393 (FB 393 ) , C.I.393,  Fluorescent Brightener OB-1, Eastobrite OB-1

Specifications

Appearance: yellowish or greenish powder

Melting point :357-359℃    

Packaging and Handling

Packaging: 25Kg/Plastic Drum

Store the product in a cool, dry, well-ventilated area away from incompatible materials. Unless stated, proper storage will permit usage of the product for 12 months from the manufacture date. For additional handling and toxicological information, consult the Material Safety Data Sheet.