code Index NO: C.I.199:1
Stuctral formula:

C.I. NO.:
Fluorescent brightener 199:1
Main content: Diphenyl ethylene derivatives
Properties: The product is yellow crystal ,insoluble in water ,no odor ,stable property ,soluble in organic solvents,stable to cation flexible,can use together with reductive bleaching agent.
Technical conditions :
Appearance: Yellow crysal powder
Melting point: >185
Purity: ≥99%
Volatile matter: ≤0.5%
Fineness: Throgh 120meshes
Use: It is mainly used in whitening of polyester fiber,melt spinning.It can also used for the plastic.
Package: 10kgs cartons,25kgs cardboard drum.Or according to the requirement of the users.