BA sing se purple data table Product data Appearance Deep purple powder The formula c34h22cl2n4o2c.i. genus name Pigment violet 23 ( pigment violet23 ) Of shape Powdered CAS number589.28 Water - soluble WS 0.2 Physical characteristics Solvent ( P - xylene ) Level 5Water resistance 5 Oil absorption 38-53 ( cc/100g ) Acid sealed values ( ph )6.5-7.5 Light fastness Level 6-8 Characteristic Heat resistance 200 C Oil resistance Level 5 Acid ResistanceLevel 5 Alkaline resistance class 5 Shading rate for standard 90-105 Introduction to the BA sing se purple Rl is dioxazine class premium organic pigments.Has outstanding brightness and color intensity and superior