Description

Solvent Red 145 is a high-performance, oil-soluble azo dye renowned for its excellent color strength and stability in non-polar media. This compound is critical for achieving vibrant, durable red coloration in a wide range of industrial applications where solubility in organic solvents is paramount. It is primarily utilized by manufacturers in the plastics, printing inks, and coatings industries seeking reliable and consistent pigmentation.

Application

• Plastics Coloring: Masterbatch and compound production for coloring polystyrene (PS), ABS, polycarbonate (PC), and other engineering plastics.
• Industrial Coatings: Pigment for solvent-based paints, wood stains, and metal coatings requiring high transparency and gloss.
• Printing Inks: Key colorant for flexographic, gravure, and specialty printing inks, particularly for packaging and decorative applications.
• Waxes and Polishes: Coloring agent for automotive, floor, and shoe polishes to provide a deep, rich red hue.
• Lubricants and Greases: Identification and coloration of industrial lubricants and greases for product differentiation and leak detection.
• Wood Staining: Used in oil-based wood stains and finishes to enhance the natural grain with a transparent red tone.

Basic Information

Product Name	Solvent Red 145
CAS No.	66057-80-5
Molecular Formula	C24H20N4O2
Molecular Weight	396.44 g/mol
Synonyms	Solvent Red 145; C.I. Solvent Red 145; 1-[[4-(Phenylazo)phenyl]azo]-2-naphthalenol; Ceres Red BB; Fat Red BB; Oil Red BB; Aizen SOT Red 1; Luxol Fast Red BB; Sudan Red BB; Organol Red BB
EINECS	266-154-6

Quality Control

Our Solvent Red 145 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against rigorous internal specifications for color value, strength, solubility, and purity. 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, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product maintains optimal stability.

Specification

Item	Specification
Appearance	Dark red powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 5% (vs. Standard)
Solubility (in Toluene)	Complete, clear 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.