Description

C.I. Basic Red 58 is a synthetic cationic dye belonging to the basic dye class, valued for its bright and intense red color. It is a critical component for imparting vibrant, wash-fast coloration to a variety of substrates, particularly those with anionic character. This product is essential for manufacturers in the textile, paper, and specialty ink industries seeking reliable and consistent color performance.

Application

• Textile Dyeing: Primarily used for dyeing acrylic fibers, modacrylic, and acid-modified nylon, offering excellent color yield and good lightfastness.
• Paper Coloring: Employed in the surface coloring and tinting of specialty papers, including decorative and security papers.
• Ink Manufacturing: A key pigment for creating vibrant red shades in flexographic, gravure, and inkjet inks, especially for packaging and promotional materials.
• Leather Finishing: Used for dyeing leather goods, providing rich and uniform color penetration.
• Biological Staining: Finds application as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: Suitable for mass coloration of certain plastics where thermal stability permits.

Basic Information

Product Name	C.I. Basic Red 58
CAS No.	61968-15-8
Molecular Formula	C21H21ClN6O3S2
Molecular Weight	529.02 g/mol
Synonyms	Basic Red 58; Aizen Cathilon Red GTLH; Astrazon Red GTL; Maxilon Red GTL; Cationic Red GTL; 1H-Benz[e]indolium, 2-[[4-[(2,6-dichloro-4-nitrophenyl)azo]-1-naphthalenyl]azo]-3-methyl-, chloride; C.I. 11276
EINECS	Contact for details

Quality Control

Our production of C.I. Basic Red 58 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 conformance to specification is provided with each shipment.

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
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% through 80 mesh

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