Chemical Name:4-Chloro-2,5-Dimethoxy-Acetoacet Aniline Other Name:Naphthol AS-IRG CAS#4433-79-8 Appearance: White Crystals Purity: 99%Min Initial M.P.as dry:105℃Min Alkali Insotuble Matter:0.05£¥max Usage:Mainly used for manufacturing organic pigments(83# Yellow)