Optical Brighteners
MPI’s optical brighteners (OB) are fluorescent whitening agents, designed to brighten colours or mask yellowing in plastics, lacquers, paints, inks, photo-processing solutions and fibres. They function by absorbing invisible ultraviolet radiation and re-emitting it as visible light in the blue range of the spectrum. Optical brighteners are particularly effective in masking the yellowish cast sometimes observed in plastics and fibres after high temperature processing operations. They are also used in substrates containing pigments or dyes to make the colours appear more brilliant.
Bright 100 (OB)
Fluorescent Whitening Agent
Chemical name:
2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole)
CAS number:
7128-64-5
Bright 200 (OB-1)
Fluorescent Whitening Agent
Chemical name:
2,2'-(vinylenedi-p-phenylene)bisbenzoxazole
CAS number:
1533-45-5
Bright 420 (KCB)
Fluorescent Whitening Agent
Chemical name:
2,2'-(naphthalene-1,4-diyl)bis(benzoxazole)
CAS number:
5089-22-5
Bright 450 (KSN)
Fluorescent Whitening Agent
Chemical name:
2-[4-[2-[4-(benzoxazol-2-yl)phenyl]vinyl]phenyl]-5-methylbenzoxazole
CAS number:
5242-49-9
Bright FP-127
Fluorescent Whitening Agent
Chemical name:
4,4'-bis(2-methoxystyryl)-1,1'-biphenyl
CAS number:
40470-68-6
Bright SWN
Fluorescent Whitening Agent
Chemical name:
7-(diethylamino)-4-methyl-2-benzopyrone
CAS number:
91-44-1
Fluorescent Whitening Agent
Chemical name:
2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole)
CAS number:
7128-64-5
Fluorescent Whitening Agent
Chemical name:
2,2'-(vinylenedi-p-phenylene)bisbenzoxazole
CAS number:
1533-45-5
Fluorescent Whitening Agent
Chemical name:
2,2'-(naphthalene-1,4-diyl)bis(benzoxazole)
CAS number:
5089-22-5
Fluorescent Whitening Agent
Chemical name:
2-[4-[2-[4-(benzoxazol-2-yl)phenyl]vinyl]phenyl]-5-methylbenzoxazole
CAS number:
5242-49-9
Fluorescent Whitening Agent
Chemical name:
4,4'-bis(2-methoxystyryl)-1,1'-biphenyl
CAS number:
40470-68-6
Fluorescent Whitening Agent
Chemical name:
7-(diethylamino)-4-methyl-2-benzopyrone
CAS number:
91-44-1