Quick Details CAS No.:3441-14-3 Other Names:Direct dyes scarlet Strength:150% Type: Direct Dye MF:C35H25N7Na2O10S2 Place of Origin: China Usage:Leather, Paper,Textile We also supply direct red 31/ 239 /80 / 81/ 224/ 243/ 277/ 79/ 89 Product Description: 1) Name: Direct Red 23 2) Chemical formula: C35H25N7Na2O10S2 3) Usage: Mainly used in Paper and Textile dyestuffs Molecular FormulaC35H25N7Na2O10S2 P.H. Value 7.5 Density(g/cm3) 1.2-1.5 Oil Absorption(ml/100g) 30-35 Light Fastness 7 Heat Resistance 160 Water Resistance 5 Oil Resistance 4 Acid Resistance 5 Alkali Resistance 5. Packaging detail:25kg/kraft bag, iron drum, carton, according to customers' requirement Delivery detail:prompt delivery.