Sell optical brightener OB-1

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Optical Brightener OB-1
Chemical name: 2,2-(1,2-Ethenediyldi-4, 1-phenylene) bisbenzoxazole

Formula:C28H18N2 O2

Molecular Weight: 414.4

C. I. Number: 393

Appearance: greenish yellow powder

Melting Point: 3590

Purity: >98.0%

Application: mainly be used in whitening of polyester and plastic, as well in
whitening of Nylon during polymerization.

Packing: 25kg per fiber drum