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    Naphthol AS-PH
    CAS NO. :92-74-0
    Molecular Formula: C19H17NO3
    Appearance: light yellow powder
    Content: 98.0% Min-98.5% Min
    Insoluble: 0.5% Max-0.1% Max
    Moisture:
    Melting point: 155℃ MIin-158℃MIin
     
      
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