Product name:Optical Brightening Agent OB-1 C. I. 393 Appearance:Yellowish green granule Purity:99% min Melting point:353-359

Chemical name: 2,2-(4,-4`-Vinyl Biphenyl)Dual BenzoxazoleCAS No.:1533-45-5Structural No.: C.I.393Molecular formula: C28H18N2O2Molecular weight: 414.4Appearance: Yellowish green granuleMelting point:353-359oCPurity:99% minApplications: The best whitening agent for polymer fiber,and it is also widely used in plastics,such as PP,ABS,PS,HIPS,PA,PC,EVA,rigid PVC etc.

Package: Packed in 25kgs fiber drum with double PE liners, or according to customers' request.

Optical Brightening Agent OB-1 C. I. 393