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NAPHTHOL AS-PH

  • C.I.:37558
  • CAS:92-74-0
  • Chemical Name: NAPHTHOL AS-PH
  • Molecular formula: C19H17NO3
  • Appearance: Light beige powder
  • Shade: Approximate
  • Intensity: 100±3%
  • Content: ≥98%
  • Melting point: ≥155℃
  • Alkali-insoluble: ≤0.4%
  • 2,3 acid content: ≤0.4%
  • The sieve residue 60 mesh (or 80 mesh)≤5%
  • Usage: This product is mainly used as an intermediate of organic pigments, which can produce Pigment Red 170; Pigment Orange 22. This product can also be used for dyeing cotton yarn, cotton fabric, vinylon, cotton fiber, viscose and silk, and is generally not used for printing. This product has low affinity to cotton and medium coupling ability.

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