Chemical Composition: Color Index: Pigment Yellow 83 C.I.NO.: 21108 Chemical Formula: C36H32Cl4N6O8 CAS NO.: 5567-15-7 EU NO.: 226-939-8 Physical Properties: Physical Form : Yellow Powder Heat Resistance(o C): 220 Density (g/cm3): 1.5 Specific Surface(m2/g): 60 PH Value: 6.0-70 Oil Absorption(ml/100g): 70 Fastness Properties: Full Color Tint Color Dispersibility: Excellent Excellent Light Fastness: 7-8 7-8 Migration Resistance PVC 4 http://www.honorpigment.com