Optical Brightener OB-1

Product Name	Optical Brightener OB-1	Molecular Structure
Other Name	Fluorescent Brightener OB-1;4,4'-Bis(2-Benzoxazolyl)Stilbene
CAS   No	1533-45-5
Molecular Formula	C28H18O2N2
Check-Point			Specification
Appearance			bright yellow green crystalline powder
Purity			≥98.5%
Melting Point			355-360℃
Loss On Drying			≤0.5%

Packing：25kg fibre drum

Product Usage： In whitening polyester fiber, in whitening and brightening polyester, cotton and other fiber blended fabrics.