Optical brightener KSN

Chemical name: Bismethyl benzoxazolylstilbene

Structure: toluylene bis-benzimidazolone type compound

CAS NO.: 5242-49-9

Molecular formula: C30H22N2O2

Molecular weight: 442

C.I.NO.: 368


Appearance bright yellow powder
Melting point ≥295℃ 
Solubility insoluble in water, soluble in high boiling point organic solvent


Application: It has better brightening effect on plastic products than OB-1. KSN has fine high temperature resistance, sunshine-proof and climate resistance performance. It is appropriate for the brightening of polyamide, polyacrylonitrile, thin film and so on.

Recommend dosage: according to ratio 0.01-0.05%.

Packing: 25kg cartons, paper bucket, paper bags or according to customer requirements.

Product picture:


Company Info

Henan Wising Chem Co., Ltd