Quinacridone Red Pigment Classification: Synthetic Organic Chemical Description: Quinacridone Opacity/Transparency: 6 Lightfastness Rating: I Permanency: Excellent Colour Index Name: PV 19 Colour Index Number: 73900 Munsell Notation Listing: Hue: 2.5 R Value: 3.25 Chroma: 12.0 Pantone Matching System: 201 Spectrophotometer Readings: N/A Viscosity Range: 23000-27000 CPS PH Range: 8.3-9.0 Gloss Average: 82.26 CIE L*a*b* Values: L*37.74 a*40.88 b*15.20 Tint Strength: 76.49