1 Product name optical brightener OB-1 2 CAS 1533-45-5 3 MF C28H18N2O2 4 MW 414.4 5 Appearance greenish yellow powder

Product name	optical brightener OB-1
CAS Code	1533-45-5
MF	C28H18N2O2
MW	414.4
Appearance	greenish yellow powder
Melting Point	359oC
Purity	99.5%

Application: mainly be used in whitening of polyester and plastic, as well in whitening of Nylon during polymerization

optical brightener OB-1