الوصف

Chemical name: 2, 5'-Bis[*-(*-tert-buty l*2 benzoxazoly)thiophene CAS No.:********5 Molecular formula: C*6H*6SO2N2 Molecular weight: **0 Appearance:slight greenish yellow powder Melting Point:******2 degree centigrade Purity:*9% min Applications:Optical brightener OB is mainly be used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene(PP), polyester fiber, paint and ink, etc. Package:Packed in *5kgs fiber drum with double PE liners, or according to customers' request.