Description

Basic Blue 41 (C.I. 11105) is a synthetic cationic dye belonging to the triarylmethane class, widely recognized for its intense blue coloration. Its primary value lies in its strong affinity for polyacrylonitrile fibers, providing excellent color fastness and brightness. This dye is essential for manufacturers in the textile industry, particularly for dyeing acrylic and modacrylic fibers, as well as for specialized applications in paper coloration and the creation of inks and toners.

Application

• Primary dyeing of acrylic and modacrylic fibers in the textile industry.
• Coloration of paper and paperboard for decorative or functional purposes.
• Manufacturing of inks and toners for printing applications.
• Dyeing of leather to achieve consistent blue shades.
• As a staining agent in biological and histological applications.
• Coloration of soaps and detergents.
• Production of colored plastics and polymers.

Basic Information

Product Name	Basic Blue 41
CAS No.	12270-13-2
Molecular Formula	C₂₀H₂₆N₃O₃S⁺
Molecular Weight	380.50 g/mol
Synonyms	C.I. Basic Blue 41; C.I. 11105; Astrazon Blue BG; Aizen Cathilon Blue BG; Maxilon Blue BG; Sevron Blue BG; Basic Blue BG; 4-[(4-Dimethylamino)phenyl][4-(ethylamino)-1-naphthyl]methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium methyl sulfate
EINECS	235-543-6

Quality Control

Our Basic Blue 41 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against rigorous internal specifications for color strength, shade, solubility, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance metrics is provided with every shipment to guarantee it meets the demands of industrial applications.

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 blue to greenish-blue powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
Ash Content	≤ 1.0%

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