Solvent Red 24

Brand	Fineland Chem
Color Index	Solvent Red 24
Color Index No	26105
CAS No	85-83-6
EC No	201-635-8
Chemical Group	AZO series
Chemical Formula	C₂₄H₂₀N₄O

Introduction

Solvent Red 24 is a high-performance solvent dye presented as a red powder. It is insoluble in water but exhibits excellent solubility in ethanol, acetone, and benzene. In concentrated sulfuric acid, it appears bluish green and produces a red precipitate upon dilution. With strong tinting strength and good compatibility, Solvent Red 24 is widely used in cellulose acetate, PMMA, ABS, rigid PVC, and other engineering plastics. It is also suitable for coatings, ball-pen inks, and polyester fiber dyeing applications.

Best Selling

SR24 – CorSol® 3524 ⬇️TDS

This is a bright red solvent dye with good heat and light resistance, suitable for vivid and transparent coloration of coatings, inks, and plastics applications.

Physical Properties

Test Item	Specification
Bulk Density (g/cm³)	0.33
Melting point (℃)	approx. 180
Moisture(%)	≤0.5
Ash(%)	≤0.3
Insolubility(%)	≤0.3
PH Value	6-8
Fe Content(ppm)	≤1000

Fastness Properties

Fastness Properties (5=excellent, 1=poor) | Light Fastness (8=excellent, 1=poor)

Heat Resistance (℃) in PS	260	Migration Resistance(1~5)	5
Light Resistance (Full Shade, 1-8)	5-6	Resistance to Acid(1~5)	4
Light (Reduced tinting, 1~8)	5	Resistance to Alkali(1~5)	4

Package and Delivery

● 25KG Kraft Bag, 400kg/500kg Carton Box ● Lead Time: Normally around 15 days after signed contract.

Application

Printing Ink: Discover high-performance ink pigments for various printing technologies including water-based, solvent-based, offset, inkjet, UV curing, and decorative applications. More Details

Paint and Coating: Explore a wide range of coating pigments tailored for paints, oils, automotive finishes, industrial applications, concrete, cement, and ceramics. More Details

Plastic and Masterbatch: Browse a comprehensive selection of plastic pigments designed for PE, PVC, EVA, rubber, and a variety of engineering plastics. More Details

Special Use: Find specialized pigments offering unique effects and functionalities for textiles, resins, glazes, metallic finishes, fluorescence, and anti-corrosion needs. More Details

Paint and Coating: Explore a wide range of coating pigments tailored for paints, oils, automotive finishes, industrial applications, concrete, cement, and ceramics. More Details

Plastic and Masterbatch: Browse a comprehensive selection of plastic pigments designed for PE, PVC, EVA, rubber, and a variety of engineering plastics. More Details

Special Use: Find specialized pigments offering unique effects and functionalities for textiles, resins, glazes, metallic finishes, fluorescence, and anti-corrosion needs. More Details

Advantages

Strong Tinting Strength and Brilliant Color
It provides a vivid red shade with high chroma and strong dyeing power, ensuring bright and consistent results even at low dosage levels.
Good Solubility in Organic Solvents
The dye dissolves easily in ethanol, acetone, and aromatic solvents like benzene, allowing for smooth dispersion and stable coloration in plastics and inks.
Stable Performance in Coatings and Inks
It offers good heat resistance and color stability, making it suitable for paints, coatings, and ballpoint pen inks.

Synonyms

Solvent Red 24
Sudan IV / Sudan Red 4 / Sudan 4
Oil Red 4B / Oil Red IV
1-(2-methyl-4-(2-methylphenylazo)phenylazo)-2-naphthol
α-Tolylazo-o-tolylazo-β-naphthol