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Optical brightener OB |
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2,5'-Bis[2-(5-tert-buty l-2 benzoxazoly)thiophene |
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7128-64-5 |
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Mainly be used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene(PP), polyester fiber, paint and ink, etc. |
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Appearance: slight greenish yellow powder Melting Point: 200-202¡ÆC Purity:¡Ã99.0% |
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