Description

Solvent Red 109 is a high-purity, synthetic organic colorant belonging to the solvent dye class. This compound is valued for its excellent solubility in non-polar to moderately polar organic media, providing intense and stable coloration. It is primarily utilized by manufacturers in the plastics, inks, and specialty coatings industries where vibrant, lightfast red hues are required for technical applications.

Application

• Primary coloration of engineering plastics such as ABS, polystyrene, and polycarbonate.
• Manufacturing of high-performance printing inks, including solvent-based and UV-curable systems.
• Pigmentation of industrial coatings, lacquers, and wood stains.
• Coloring of synthetic fibers and masterbatches.
• Used as a colorant in specialty waxes and polishes.
• Potential use as a tracer dye in non-aqueous fluids for leak detection.

Basic Information

Product Name	Solvent Red 109
CAS No.	53802-03-2
Molecular Formula	C24H20N4O2
Molecular Weight	396.44 g/mol
Synonyms	1-[[4-(Phenylazo)phenyl]azo]-2-naphthol; C.I. Solvent Red 109; Oil Red 5B; Aizen SOT Red 3; Ceres Red 5B; Fat Red 5B; Sudan Red 5B; Organol Red 5B
EINECS	258-726-9

Quality Control

Our Solvent Red 109 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against rigorous in-house specifications for color strength, purity, and solubility. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Dark red powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3%
Solubility (in Toluene)	Complete, clear solution
Moisture Content (KF)	≤ 0.5%
Ash Content	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.