Chemical Composition: Color Index: Pigment Red 188 C.I.NO.: 12467 Chemical Formula: C33H24ClN4O6 CAS NO.: 61847-48 EU NO.: 263-272-1 Physical Properties: Physical Form : Red Powder Heat Resistance(o C): 200 Density (g/cm3): 1.5 Specific Surface(㎡/g): 22 PH Value: 6.0-8.0 Oil Absorption(ml/100g): 38 Fastness Properties: Full Color Tint Color Dispersibility: Excellent Excellent Light Fastness: 8 7~8 Acid Resistance: 5 4~5 Alkali Resistance: 5 4~5 Weather Fastness: 5 4~5 Water Resistance: 5 4~5 Oil Resistance: 5 4~5 http://www.honorpigment.com