Description

Basic Red 2 is a synthetic cationic dye belonging to the azo class, widely recognized for its vibrant red color and strong affinity for polyacrylonitrile fibers. This high-performance dye is valued for its excellent color fastness, brightness, and consistent batch-to-batch quality, which are critical for industrial-scale production. It is primarily used by manufacturers in the textile, paper, and leather industries seeking reliable and efficient coloration solutions.

Application

• Textile Dyeing: Primary application for dyeing acrylic fibers, modacrylics, and certain polyamide fibers to achieve brilliant red shades.
• Paper Coloring: Used in the production of specialty papers, decorative tissues, and colored paperboard where high color intensity is required.
• Leather Finishing: Employed in the dyeing of leather goods to provide uniform and durable coloration.
• Ink Manufacturing: Serves as a colorant in the formulation of inks for various printing applications.
• Biological Staining: Utilized in histology and microbiology as a staining agent for microscopic analysis.
• Plastics and Polymers: Incorporated for coloring certain types of plastics and synthetic materials.

Basic Information

Product Name	Basic Red 2
CAS No.	477-73-6
Molecular Formula	C20H19N4Cl
Molecular Weight	350.85 g/mol
Synonyms	Astrazon Red FBL; Basic Red FBL; C.I. 50240; C.I. Basic Red 2; Maxilon Red BL; Red BL; 3-[(4-Amino-2-methylphenyl)azo]-1,3-dimethyl-1H-imidazol-3-ium chloride; 1,3-Dimethyl-2-[(2-methyl-4-aminophenyl)azo]imidazolium chloride
EINECS	207-518-8

Quality Control

Our Basic Red 2 is manufactured under a stringent quality management system to ensure it meets the high standards required for industrial applications. Every batch is tested for key parameters including purity, color strength, and solubility. A comprehensive Certificate of Analysis (COA) detailing the results of these tests is provided with each shipment to guarantee traceability and compliance.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Ash Content	Max. 1.0%

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