Description

Solvent Red 25 is a synthetic organic colorant belonging to the solvent dye class, characterized by its excellent solubility in non-polar to moderately polar organic media. This property makes it a valuable tool for imparting a strong, stable red coloration to a wide range of industrial materials. It is primarily sought after by manufacturers in the plastics, coatings, and specialty ink sectors who require consistent, high-intensity color performance in hydrophobic systems. The compound is supplied as a fine powder, ensuring ease of handling and dispersion.

Application

• Plastics Coloring: A primary dye for coloring various polymers, including polystyrene, ABS, polycarbonate, and polyolefins, providing good heat stability and migration resistance.
• Industrial Coatings and Paints: Used in solvent-based lacquers, wood stains, and automotive refinish paints to achieve vibrant, durable red shades.
• Printing Inks: Employed in specialty inks for foil printing, metal decoration, and other applications requiring solubility in organic solvents.
• Wax and Grease Coloring: Effective for coloring candles, industrial waxes, and lubricating greases where oil solubility is essential.
• Personal Care Products: Used in the formulation of certain cosmetic products like nail polishes and hair dyes, subject to regional regulatory compliance.
• Lacquers and Varnishes: Imparts transparent or translucent red color effects in clear coating formulations.

Basic Information

Product Name	Solvent Red 25
CAS No.	50926-66-4
Molecular Formula	C22H18N4O2
Molecular Weight	370.41 g/mol
Synonyms	1-[[4-(Phenylazo)phenyl]azo]-2-naphthol; C.I. Solvent Red 25; Ceres Red BB; Oil Red BB; Aizen SOT Red 1; Sudan Red BB; Red 2G; Waxoline Red 2G; C.I. 26110; 1-[(E)-[4-[(E)-Phenyldiazenyl]phenyl]diazenyl]naphthalen-2-ol
EINECS	256-909-1

Quality Control

Our Solvent Red 25 is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, hue, solubility, and purity. Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical properties are provided with every shipment. We adhere to relevant industry standards and can support compliance documentation for global supply chains.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3% (vs. Standard)
Solubility (in Toluene)	Clear, complete solution
Moisture Content (KF)	≤ 1.0%
Ash Content	≤ 0.5%

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