Description

Solvent Red 43 is a high-purity, synthetic organic dye belonging to the solvent dye class, known for its excellent solubility in non-polar to moderately polar organic media. This product is valued for its strong, vibrant color and stability, making it a critical component for imparting color in specialized industrial applications. It is primarily sought after by manufacturers in the plastics, ink, and specialty coatings industries who require consistent, high-performance colorants for their formulations.

Application

• Coloration of engineering plastics (e.g., ABS, polystyrene, polycarbonate) and synthetic fibers.
• Manufacturing of high-performance printing inks, including specialty and security inks.
• Pigmentation for industrial coatings, lacquers, and wood stains.
• Coloring of waxes, greases, and lubricants for identification purposes.
• Staining of fuels and hydrocarbon-based fluids.
• Production of colored transparent films and sheets.
• As a colorant in specialty adhesives and sealants.

Basic Information

Product Name	Solvent Red 43
CAS No.	15086-94-9
Molecular Formula	C24H21N3O2
Molecular Weight	383.44 g/mol
Synonyms	Solvent Red 43; C.I. Solvent Red 43; 1-[[4-(Phenylazo)phenyl]azo]-2-naphthalenol; Ceres Red BB; Fat Red BB; Oil Red BB; Sudan Red BB; Aizen SOT Red 2; C.I. 45380:2
EINECS	239-138-3

Quality Control

Our Solvent Red 43 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high performance. Each lot undergoes comprehensive analytical testing, including identity confirmation, purity assay, and strength evaluation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Red to dark red powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3%
Loss on Drying	≤ 1.0%
Ash Content	≤ 0.5%
Solubility (in Toluene)	Complete, clear solution

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