Description

Basic Red 49 is a cationic, water-soluble dye belonging to the azo class, widely recognized for its vibrant and durable red coloration. Its primary value lies in providing excellent color fastness and strong substantivity to polyacrylonitrile and other synthetic fibers. This product is essential for manufacturers in the textile, paper, and specialty chemical industries seeking reliable and consistent dyeing performance. It is also known under its CAS number 12270-23-4.

Application

• Textile Dyeing: Primary application for dyeing acrylic fibers, modacrylics, and other cationic-dyeable synthetic materials.
• Paper Coloring: Used in the production of colored papers, tissues, and paperboard where a bright red hue is required.
• Leather Finishing: Imparts color to leather goods in the tanning and finishing processes.
• Ink Manufacturing: Serves as a colorant for inks used in specialty printing applications.
• Biological Staining: Employed in histological and cytological staining procedures in laboratory settings.
• Masterbatch Production: Used as a color concentrate for plastics and polymers.

Basic Information

Product Name	Basic Red 49
CAS No.	12270-23-4
Molecular Formula	C₂₁H₂₂ClN₅O₃
Molecular Weight	427.88 g/mol
Synonyms	Astrazon Red GTL; Aizen Cathilon Red GTLH; Maxilon Red GRL; C.I. Basic Red 49; 1,3-Benzenedicarboximidamide, N,N'-bis[2-[(4-methoxyphenyl)azo]-6-(methylamino)-3-pyridinyl]-; Cationic Red GTL; DyStar Basic Red GTL; Red GTL Base; Sevron Red GTL
EINECS	235-543-6

Quality Control

Our Basic Red 49 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against established specifications for color strength, shade, solubility, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment to support your quality assurance protocols.

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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark Red Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear Solution
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.