A very bright orange-ish, semi-transparent red, is a synthetic pigment with good lightfastness. It is a good choice as an alternative to Cadmium Red Light. (Series 5)

Pigment Classification: Synthetic Organic
Color Index Name: PR 112
Color Index Number: 12370
Chemical Description: Naphthol AS-D
Opacity/Transparency: 4
Lightfastness Rating: II
Permanency: Very Good
Munsell Notation Listing: Hue 7.0 R Value 4.25 Chroma 17
Gloss Average: 49.2
Viscosity Range: 18000- 22000 CPS
CIE L*a*b* Values: L*44.02 a*50.85 b*32.4
Tint Strength: 72.21