Naphthol AS-RL

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Product Name: Naphthol AS-RL
Chemical Name:  3-Hydroxy-4′-methoxy-2-naphthanilide
 2-HYDROXY-3-[(4-METHOXYPHENYL)CARBAMOYL]NAPHTHALENE; 2-HYDROXY-3-NAPHTHOYL-P-ANISIDIDE; 3-HYDROXY-2-NAPHTHOYL-P-ANISIDIDE; NAPHTHOL AS-RL; NAPTHOL AS-RL; 3-hydroxy-4′-methoxy-2-naphthanilide; 3-hydroxy-2-naphth-p-anisidide; C.I.Azoic Coupling Component 11
CAS No: 92-79-5
MF: C18H15NO3
MW:  293.32
Naphthol Dyes


Light brown powder. Do not dissolve in water and soda solution. Dissolved in pyridine. Soluble sulfuric acid was slightly brown, soluble in caustic soda solution was yellow.


Naphthol AS-RL is mainly used for cotton dyeing red primer, but also for dyeing vinylon, viscose fiber, silk, diacetate fiber and for cotton printing. Medium affinity for cotton, medium coupling capacity, its performance and naphthol AS-OL (C.I.37530) similar.

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 brown powder
Content 100%
Moisture ≤0.1%
Insoluble ≤0.1%
Melting point 229~230℃
 Application  Color base

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