1. Product Name Trade Name: 3138 Toluidine Red RN C.I. Number: Pigment Red 3 CAS Number: 2425-85-6 EU Number: 219-372-2 Chamical Family: Mono azo 2. Physical, Chemical and Fastness Properties Molecular Weight: 307.30 Molecular Formula: C17H13N3O3 P.H. Value: 6.5-7.5 Density: 1.5 Oil Absorption ml/100g : 30-40 Light Fastness: 6 Heat Resistance: 120 Water Resistance: 4 Oil Resistance: 4 Acid Resistance: 4 Alkali Resistance: 5 3. Application Shade: Yellowish Red Main Application: Industrial Paint, Offset Ink, Solvent-based Paint, Stationery