Description

C.I. Basic Red 41 is a synthetic cationic dye belonging to the azo class, widely recognized for its vibrant red hue. This product is valued for its excellent tinctorial strength and good solubility in water and polar organic solvents, making it a versatile coloring agent. It is primarily used by manufacturers in the textile, paper, and specialty ink industries for dyeing and printing applications where a bright, cationic red color is required.

Application

• Textile Dyeing: Primarily used for dyeing acrylic fibers, modacrylic, and certain polyesters, offering good light and wash fastness.
• Paper Coloring: Employed in the production of colored papers, tissues, and paperboard where a strong, cationic red shade is needed.
• Ink Formulation: A key component in the manufacture of specialty inks, including stamp pad inks and certain flexographic inks.
• Leather Finishing: Used for dyeing leather goods to achieve consistent and vibrant red finishes.
• Biological Staining: Finds application as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: Can be used for mass coloration of certain plastics where compatibility is confirmed.

Basic Information

Product Name	C.I. Basic Red 41
CAS No.	12221-65-7
Molecular Formula	C21H23ClN6O3S
Molecular Weight	474.96 g/mol
Synonyms	Basic Red 41; Aizen Cathilon Red GTLH; Astrazon Red GTL; Maxilon Red GRL; Cationic Red GTL; 1,3-Benzenedicarboxamide, N1,N3-bis[4-[(2-chloro-4-nitrophenyl)azo]-3-methylphenyl]-; C.I. 11244; Basic Red 41 (C.I. 11244)
EINECS	235-402-5

Quality Control

Our production of C.I. Basic Red 41 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, shade, solubility, and impurity profile. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee it meets your specific application requirements.

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 and incompatible materials.

Specification

Item	Specification
Appearance	Dark red powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
Ash Content	≤ 1.0%
Particle Size	95% min. passes through 80 mesh

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