Sell optical brightener OB

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Optical Brightener OB
Chemical name: 2,5-bis(5-tert-butyl benzoxazolyl-2-) thiophene

Formula: C26H26N2 O2S

Molecular Weight: 430

C. I. Number: 184

Appearance: slight yellow or milk white powder

Melting Point: 200~2020

Purity: >99.0%

Application: mainly be used in whitening of thermoplastic, polyvinyl chloride
(PVC) , polypropylene (PP) , polyester fiber, paint and ink, etc.

Packing: 25kg per fiber drum