C. I. Number: 199:1
Chemical name: Stilbene derivative
Appearance: light yellow-green dispersion liquid
Ionic character: Nonionic
Solid content: 20% or 25% (min)
Light fastness grade: 5
Shade: Blueish
Property: 1) Insoluble in water and soluble in many organic solvents
　　　　  2) Stable when used with cationic softeners
　　　      3) May be used in a bath with hypochlorite, hydrogen peroxide and reactive bleaching agents
　　　  　4) When dip dyed or pad dyed it produces a higher whiteness in polyester fibers
　　　　  5) Excellent fastness when washed Property: Mainly be used in whitening of polyester fabric.