Pigments & Colorants
REACH
Pigment red 53
CAS Number
5160-02-1
EC Number
225-935-3
What is Pigment red 53?
Pigment Red 53 (CAS 5160-02-1), also known as D&C Red 9 and the barium salt form C.I. Pigment Red 53:1, is an azo-based organic pigment delivering a bright, bluish-red hue.
Where is Pigment red 53 used?
- Printing inks: vivid red tones in packaging, labels, and publication printing
- Plastics: red coloration in rigid and flexible polymer systems at processing temperatures
- Coatings and paints: saturated red shade in decorative and industrial finishes
- Textile and paper: surface colorant in pigment-based systems
- It is used where strong color intensity and cost-effective red shading are required in manufactured goods.
Good to know: The standard acid form and the barium lake variant (53:1) differ in substrate compatibility and bleed resistance.
Commercial specifications
- Common commercial grades at high pigment concentrations for masterbatch, ink, and coating production
- Specifications aligned to color index performance benchmarks
Other Names (Synonyms)
C.i. pigment red 53:1, ba-salt|D&c red 9|C.i. pigment red 53:1|Barium(2+);bis(5-chloro-2-[(2-hydroxynaphthalen-1-yl)diazenyl]-4-methylbenzenesulfonate)|Pigment red 53:1
What are the physical properties of Pigment red 53?
Melting Point 343-345 °C (decomp)
Density 1.66 g/cm³
Color Orange to Red
Form powder to crystal
Water Solubility <0.01 g/100 mL at 18 ºC
How is Pigment red 53 classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed
H332 Harmful if inhaled
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
Which trade and regulatory codes apply to Pigment red 53?
HS Code 2927.00.5000