Cadmium Red Medium became the most widely used red shortly after it was synthesized in 1907 because it offered greater permanence and intensity than the mostly plant-based reds used up to that time. (Series 9)

Pigment Classification: Synthetic Inorganic
Color Index Name: PR108
Color Index Number: 77202
Chemical Description: Concentrated Cadmium Sulfoselenide
Opacity/Transparency: Opaque
Lightfastness Rating: 1
Permanency: Not for Exterior Use