Pigments & Colorants
REACH
Pigment red 48
CAS Number
15782-05-5
EC Number
239-879-2
What is Pigment red 48?
Pigment Red 48 (CAS 15782-05-5) is a strontium-based azo pigment; also known commercially as PR48.
Where is Pigment red 48 used?
- Printing inks: packaging applications needing vivid red shades and acceptable heat resistance for flexographic processes
- Plastics: PVC and polyolefin formulations for cost-effective red coloration at moderate processing temperatures
- Textile and paper dyeing: consistent red tones in surface coatings and pigment-printed fabrics
- Automotive refinish and industrial coatings formulators select it for decorative applications where bright red hue and opacity take priority.
Good to know: Valued for bright masstone and good lightfastness; effective where high-performance durability is not the primary requirement.
Commercial specifications
- Full-strength and flushed variants
- Tinting strength and oil absorption documented per batch
Other Names (Synonyms)
2-Naphthalenecarboxylic acid, 4-[2-(5-chloro-4-methyl-2-sulfophenyl)diazenyl]-3-hydroxy-, strontium salt (1:1)|Pigment Orange 34|strontium 2-[(3-carboxy-2-oxidonaphthalen-1-yl)diazenyl]-4-chloro-5-methylbenzenesulfonate|Pigment red 48:3
What are the physical properties of Pigment red 48?
Density 1.9[at 20℃]
Log P -0.23 at 23℃