Naphthol AS-BO

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Product Name: Naphthol AS-BO
Chemical Name:  3-Hydroxy-N-naphthalen-1-ylnaphthalene-2-carboxamide
 2-HYDROXY-3-NAPHTHOIC ACID 1-NAPHTHYLAMIDE;3-HYDROXY-N-(1-NAPHTHYL)-2-NAPHTHAMIDE;NAPTHOL AS-BO;NAPHTHOL AS-BO;1-(2′,3′-Hydroxynaphthoylamino)naphthalene;2-Naphthamide, 3-hydroxy-N-1-naphthyl-;3-Hydroxy-2-naphthoic-alpha-naphthalide;3-hydroxy-n-1-naphthalenyl-2-naphthalenecarboxamide
CAS No: 132-68-3
MF: C21H15NO2
MW: 313.35
Naphthol Dyes


Light beige powder. Soluble in xylene. Soluble in caustic soda solution was yellow. Do not dissolve in water and soda solution.


Naphthol AS-BO is mainly used for cotton fiber dyeing and cotton printing primer, but also for vinylon, viscose fiber, silk, nylon dyeing. With red-based B with purple color paste, a better light fastness. Also used in the manufacture of fast pigments and organic pigments.

Storage: Storage should be cool and ventilated, away from heat, fire, to prevent sun exposure, heat is strictly prohibited.
Package: 25kg PP bag for solid powder. 200L or 250KG Drum for Liquid.


Appearance Light beige powder
Content 100%
Moisture ≤0.1%
Insoluble ≤0.1%
Melting point 222~223℃
 Application  Color base

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