Naphthol AS-ITR

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Product Name: Naphthol AS-ITR
Chemical Name: N-(2-Hydroxynaphthoyl)-2,4-dimethoxy-5-chloroanilide
2-Naphthanilide, 5′-chloro-3-hydroxy-2′,4′-dimethoxy-; Acco Naf-Sol AS-ITR; Acco Naphthol AS-ITR; Acna Naphthol SS; Amanil Naphthol AS-ITR; Azoground ITR; Azotol O; C.I. 37550
CAS No: 92-72-8
MF: C19H16ClNO4
MW: 357.79
Naphthol Dyes


Light gray powder. Melting at 193-194 ° C. Soluble in acetone, soluble in pyridine, ethanol and benzene, do not dissolve in sodium carbonate solution. In sulfuric acid was a yellow solution, with green fluorescence; in sodium hydroxide solution was yellow. The air is stable.


Naphthol AS-ITR is mainly used in cotton dyeing primer, red, such as with the red-based ITR, red-based KL with Yan-color pink. High affinity for cotton. Also used for viscose fiber, silk, nylon dyeing and printing of cotton and used in the manufacture of lake 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 gray powder
Content 100%
Moisture ≤0.1%
Insoluble ≤0.1%
Melting point 200 °C
Applicatioin  Color base

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