Product Class: Optical Brightener Agent For Plastic Product Name : Optical Brightener Agent KSN Chemical Name: 4.4-bis(5-methyl-2-benzoxoazol)-ethylene CAS No. 5242-49-9 C.I. No. 368 Structural Formula Molecular Formula: C29used for high temperature process. H20N2O2 Properties: 1. being highly whiteness with small usage 2. multipurpose used for whitening of polyester fiber and plastic 3. having a good compatibility and good fastness to light and sublimation. Can be Treating Process: Overlay plastic:0.5-2g/100kg Polyester fiber:10-20g Package: 20kg cardboard drum Technical Index: Appearance: greenish yellow powderï Melting process: 275~280 Ash content: Volatile content Fineness(300 mesh):100% Uses: mainly be used in whitening of polyester, polyamide, polyacrylonitrile fiber, the plastic film and all plastic pressing process. Can suitable for synthesizing high polymer including polymeric process. Package: 10kg or 25kg per fiber drum