CAS 1533-45-5 Optical Brightener Agent Ob-1

• CAS NO.: 1533-45-5
• Formula: C28h18n2o2
• EINECS: 216-245-3
• Colour: Yellow
• Appearance: Powder
• Usage: Ink, Plastic, Textile
• Model NO.: OB-1
• Application Material: Fabric, Plastics
• Type: Synthetic
• Sample: Available
• Transport Package: 25kg/Fiber Can
• Specification: 25kg/fiber can
• Trademark: ChemFine
• Origin: China
• Production Capacity: 20 Metric Tons/Month

Product Description

Last Edited:4/12/2021
------------------------------Optical brightener OB-1 can 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).

Product Name	Optical brightener OB-1
Chemical Name	4,4'-Bis(2-benzoxazolyl)stilbene
CAS NO.	1533-45-5
MF	C28H18N2O2
Appearance	Yellowish green powder
Purity	99.0%min
UV Absorption	Minimum UV wavelength: 374nm  Maximum UV wavelength: 434nm
Melting point	357-360ºC
Packing and storage	25 kg fiber drum, or per customer request