Naphthol AS-LC is a derivative of chromophenol. Naphthol AS-LC is mainly used in the dyeing of cotton, viscose fiber, silk, silk, nylon and polyester. It is generally not used in printing. It is a base agent for orange yellow brown dyeing. It is commonly used in the color development of yellow based GC and orange based GC. It has high affinity for cotton and is an intermediate for the preparation of organic pigments.