Optical Brightener OB-1

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Optical Brightener OB-1
Posting date : Jun 06, 2014
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30-
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Other Name Fluorescent Brightener OB-1; 4,4'-Bis(2-Benzoxazolyl)Stilbene CAS NO. 1533-45-5 Molecular Formula C28H18O2N2 Product Usage A good whitening agent for polyester-cotton blend fabric or various kinds of plastics and their products under high temperature. Check-Point Unit Specification Appearance -- Yellowish Powder Purity % min 98.5 Melting Point °C 355-360 Loss On Drying: % max 0.5

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