Appearance Yellow-green powder Melting point 210-212°C Content ≥98.0% Mainly used in whitening and brightening process of synthetic fiber,synthetic leather,film,waistband molding material and infection molding material ,etc.it has excellent whitening and brightening for soft PVC,high foamed PVC,TPR,EVA,PU and synthetic rubber,etc

CAS NO:1533-45-5

EC NO:216-245-3

Molecular Formula:C₂₈H₁₈N₂O₂

Molecular Weight:414.4547

Synonyms:;Fluorescent Brightener OB-1;FBA393；2,2'-(4.4'-diphenol vinyl)di-henzoxazol ;2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole;FBA 393;4,4'-bis(benzoxazol-2-yl)stilbene;Optical Brightener OB-1;C.I. 393;Fluorescent whtening agent OB-1;Fluorescent Whitening Agent OB-1;2,2'-(ethene-1,2-diyldibenzene-4,1-diyl)bis(1,3-benzoxazole);2,2'-[(E)-ethene-1,2-diyldibenzene-4,1-diyl]bis(1,3-benzoxazole);Optical Brightening Agent OB-1;Optical Brightner OB-1;ptical Brightening Agent OB-1;4,4-Bis(2-Benzoxazolyl) Stilbene;

Molecular Structure: