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    Optical Brightener OB-1

    Optical Brightener OB-1

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    Specification :

    Chemical name: 4,4¡¯-bis(benzoxazol-2-yl) stilbene
    Formula: C28H18N2O2

    Molecular Weight: 414

    C.I. Number: 393

    Appearance: yellowish green powder

    Melting Point: 358-360

    Purity: 98.0%

    Application:

    mainly be used in whitening of polyester and plastic, as well in whitening of nylon dring polymerization.

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