Chemfine International Co., Ltd.  

Product Name: CAS 1533-45-5 in Stock New 2020 Purity 99.0%Min Optical Brightener Agent Ob-1 Model NO.: OB-1 Type: Synthetic Application Material: Fabric, Plastics Usage: Ink, Plastic, Textile Appearance: Powder Colour: Yellow EINECS: 216-245-3 Formula: C28h18n2o2 CAS NO.: 1533-45-5 Sample: Available Trademark: ChemFine Transport Package: 25kg/Fiber Can Specification: 25kg/fiber can Origin: China Product Description ChemFine Service1. Product Quality Assurance3. Real-time order tracking2. Delivery guarantee4. The field inspectionProduct DescriptionProduct Name: Optical brightenerOB-1Chemical Name:4,4'-Bis(2-benzoxazolyl)stilbeneCAS No. :1533-45-5MF:C28H18N2O2Appearance:Yellowish green powderASSAY: 99%minMelting Point:357~359°C Optical brightener OB-1can be widely used in PVC, PS, ABS, PE, PP and other plastics.It has a superior fluorescent whitening effect, good thermal stability, and few added amounts. More importantly, it is more cost-effective.It can greatly improve the whiteness of recycled polyester staple fiber and recycled textiles and plastic soda bottles (PET).