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      Pigment Violet 23 (Permanent Violet)

      (C.I. Pigment Violet 23)

      Category: Dioxazine

      Molecular formula: C34H22Cl2N4O2
      Molecular weight: 589.47
      CAS number: 6358-30-1
      Structural formula:


      Index:

       

      Appearance: dark purple powder

      Shade: red, blue, medium hue

      Tinting strength: ±5%

      Weight loss (105℃): ≤1.5%

      Water solubles: ≤1.5%

      Oil absorption: 33~53%

      Heat resistance: 270℃

      Light fastness: 7-8 level

      Migration resistance: Level 4

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