Fluorescent Whitening Agent OB-1 C. I. 393
Chemical name: 2, 2'-(1, 2-Ethenediyldi-4, 1-phenylene)bisbenzoxazole
Structural formula:
Molecular weight: 414.4
CAS No.: 1533-45-5
EINECS NO.: 216-245-3
C. I.: 393
SYNONYMS: Fluorescent Whitening Agent OB-1; 2, 2'-(1, 2-Ethenediyldi-4, 1-phenylene)bisbenzoxazole; Fluorescent Brightener 393; Optical Brightener OB-1, Fluorescent Brightener OB-1, UVITEX OB-ONE, Optical Brightening Agent OB-1, C. I. 393

Properties: YC Fluorescent Whitening Agent OB-1 is one superior bisbenzoxazole compound, it is insoluble in water, soluble in high boiling point organic solvents. It is well in heat resistance, move resistance and high temperature tolerance.

Specifications:
Appearance: Yellowish green powder
Melting point: 359-361C
Assay: 98% min
Ash: 0.1%max.
Volatile Content: 0.5%max
Particle Size: 300meshes

Application:
YC Fluorescent Whitening Agent OB-1 is widely used in variety of polymer substance, especially polyester fiber, PP fiber. It also can be used in plastic material such as PVC, ABS, EVA, PS, etc.

Package: Packing in 25kg fiber drum or according to the requirement of the customers.