Naphthol AS-BO

• Category :

  Dyestuffs and Pigments/Others

• Synonyms :

  C.I. Azoic Coupling Component 4;C.I.Azoic Coupling Component 4;3-hydroxy-N-1-naphthyl-2-naphthamide;2-Hydroxy-3-Naphthoyl-1-Naphthamide;3-hydroxy-N-(naphthalen-1-yl)naphthalene-2-carboxamide;3-Hydroxy-N-Naphthalen-1-Ylnaphthalene-2-Carboxamide;

• CAS NO :

  132-68-3

• EC NO :

  205-075-5

• Molecular Formula :

  C₂₁H₁₅NO₂

• Molecular Weight :

  313.3493

• Main Specifications :

• InChI :

  InChI=1/C21H15NO2/c23-20-13-16-8-2-1-7-15(16)12-18(20)21(24)22-19-11-5-9-14-6-3-4-10-17(14)19/h1-13,23H,(H,22,24)

• Product description :

  Product name: Naphthol AS-BO C. I.NO(37560) C A S: 132-68-3 Chemical name: 3-hydroxy-N - (1-naphthyl) -2-naphthyl formamide Subformula: C21H15NO2 Structure. Type: Exterior: Beige powdery Shade: approximate C: 100 + / - 3% Including: 98.5% or higher Melting point: 215 ℃ or higher Alkali insoluble substance: ≤0.2% 2,3 acid content: ≤0.20% Sieve residue 60 mesh (or 80 mesh) ≤5% Application: mainly used for dyeing cotton yarn, cotton fabric, cotton knitting, corduroy, Vinylon, viscose, silk and cotton-fibre, generally not used for printing.This product has a high affinity for cotton and medium coupling ability.It can be used to make fast pigments, neutrins and organic pigments. Synthetic pigment: P.R.16, P.R.134

• Molecular Structure :