Description

Solvent Red 149 is a high-performance, oil-soluble red dye belonging to the anthraquinone chemical class. This compound is valued for its excellent color strength, thermal stability, and solubility in a wide range of non-polar organic solvents and polymers. It is primarily utilized by manufacturers in the plastics, coatings, and specialty ink industries seeking vibrant and durable red coloration. The product is supplied under strict quality control to ensure batch-to-batch consistency for demanding industrial applications.

Application

• Primary coloration of engineering plastics such as polystyrene (PS), ABS, and polycarbonate (PC).
• Manufacturing of colored masterbatches and concentrates for the plastics processing industry.
• Solvent-based industrial coatings and automotive paints requiring high lightfastness.
• Pigmentation for specialty printing inks, including security and metal decoration inks.
• Coloring of synthetic fibers and waxes during the melt-spinning process.
• Tinting agent for lubricating oils and greases for identification purposes.

Basic Information

Product Name	Solvent Red 149
CAS No.	71902-18-6
Molecular Formula	C24H20N2O2
Molecular Weight	368.43 g/mol
Synonyms	1,4-Bis(pentylamino)anthraquinone; C.I. Solvent Red 149; Oil Red 149; Anthraquinone Red 149; 1,4-Bis(amylamino)anthraquinone; 1,4-Di(pentylamino)anthraquinone; Red 149 Solvent Dye
EINECS	Contact for details

Quality Control

Our production of Solvent Red 149 adheres to a stringent quality management system to ensure product purity and performance consistency. Each batch is analyzed against established internal specifications, which typically include identity confirmation, purity assay, and strength evaluation. A Certificate of Analysis (COA) detailing these results 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 room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product remains stable for extended periods.

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	≤ 0.5%
Ash Content	≤ 0.5%

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