Product Name: Optical Brightener OB-1 Model No.: OB-1 CAS No.: 1533-45-5 C.I.No.: 393 Molecular Formula: C28H18N2O2 Appearance: Yellowish green powder Purity: â?¥98.5 % Melting point: 355-360�°C 1. Suitable for polyester fiber (PSF), nylon fiber and chemical fiber whitening. 2. Suitable for PP, PVC, ABS, PA, PS, PC, PBT plastic whitening brightening, with excellent whitening effect. 3. Suitable for whitening agent concentrated masterbatch added (such as: LDPE color concentrate) Advantage: Low price,high quality,fast delivery.
