Specifications

1.Product Name:Optical Brightener OB-1
2.Appearance: yellowish powder
3.Suggest add quatity:0.1-.02%

Chemical Name: 2,2'-(1,2-Ethenediyldi-4,1-phenylene)Bisbenzoxazole

Molecular Formula: C28H18N2O2

Molecular Weight: 414.4

Max. UV absorption wavelength: 374 nm

Max. Fluorescence emission wavelength: 434 nm

Specifications:

Item	Indices
Appearance	yellowish powder
Purity	≥98.0%
Smell	No special smell
Melting point	353-359°C
Ash	≤0.50%
Volatile content	≤0.50%