Suppliers Tianjin huiquan Chemical Co.,Ltd
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  • Optical Brightener

    Fluorescent Brightening Agent 4BK Structural Formula: C28H20Na2O6S2 Cas No.: 27344-41-8 Appearence: slight yesllowish green uniform powder Fluorescent Color: slight bluish tone Moisture Contect≤5% Fineness(120 mesh residue)≤5% Applications

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