MPI Chemie

MPI Bright 200 (OB-1)

Chemical name: 2,2'-(vinylenedi-p-phenylene)bisbenzoxazole
CAS number: 1533-45-5
EC number: 216-245-3
Molecular weight: 414.47
Molecular formula:



Item Standard Test method
Appearance   Bright yellow crystal powder
Main content % Min. 98.5
Melting point °C 355 - 360
Volatile content % Max. 0.5
Ash content % Max. 0.5
Clarity of solution   Clear solution


MPI Bright 200 has been designed to provide great improvement to the whiteness degree in polyester-,
nylon- and textile fibres, as well as intensifying existing colours. Furthermore, due to its good thermal
stability, MPI Bright 200 is compatible with many polymers. Thus making it and excellent brightener
for a variety of plastics. Dissolving MPI Bright 200 into the fibre or polymer during the manufacturing
process, ensures an increased brightness retention compared to conventional surface treatment.


Drums of 25kg nett. Pallets of max 375kg nett


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