Basic information
CAS NO
1533-45-5
EINECS
216-245-3
Molecular Formula
C28H18N2O2
Molecular Weight
414.4547
English Name
Fluorescent Brightener 393
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,
Physical and Chemical Properties
Density
1.281g/cm3
Refractive index
1.731
Melting point
357-359℃
Boiling point
566.8°C at 760 mmHg
Flash point
285.1°C
Vapour Pressure
2.79E-12mmHg at 25°C
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