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NAPHTHOL AS-ITR

  • C.I.:37550
  • CAS: 92-72-8
  • Chemical Name: NAPHTHOL AS-ITR
  • Molecular formula: C19H16ClNO4
  • Appearance: off-white or light green powder
  • Shade: Approximate
  • Intensity: 100±3%
  • Content: ≥98%
  • Melting point: ≥193℃
  • Alkali-insoluble: ≤0.5%
  • 2,3 acid content: ≤0.4%
  • The sieve residue 60 mesh (or 80 mesh)≤5%
  • Usage: This product is mainly used as the intermediate of organic pigments, and can produce Pigment Red 5, 132, 133, 187, 199. This product can also be used for dyeing cotton fabrics, vinylon, viscose, silk and acetate and printing cotton fabrics. Can be used to make fast pigments. This product has medium affinity to cotton and medium coupling ability. This product has bright color and good fastness.

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