Description

Astrazon Red 6B CAS NO 6441-82-3 is a high-performance, synthetic cationic dye belonging to the azo class, renowned for its brilliant red hue and excellent substantivity. This product is engineered to deliver consistent, vibrant coloration with strong fastness properties, making it a critical component for achieving reliable and durable color results. It is primarily utilized by manufacturers in the textile, paper, and leather industries seeking superior dyeing performance and batch-to-batch consistency.

Application

• Textile Dyeing: Primarily used for dyeing acrylic fibers, modacrylic, and certain polyesters, offering excellent wash and light fastness.
• Paper Coloration: Employed in the production of specialty papers, including colored tissue, packaging, and decorative papers where bright shades are required.
• Leather Finishing: Applied in the dyeing of leather goods to achieve uniform and penetrating red shades.
• Ink Manufacturing: Serves as a colorant for certain types of inks, including stamp pad inks and other specialty formulations.
• Biological Staining: Used in histology and microscopy as a staining agent for tissue samples in laboratory settings.
• Plastics and Polymers: Can be incorporated for the mass coloration of certain plastics where a stable red color is needed.

Basic Information

Product Name	Astrazon Red 6B
CAS No.	6441-82-3
Molecular Formula	C18H21N6O12S3 · 2Cl
Molecular Weight	728.50 g/mol (for chloride salt)
Synonyms	Basic Red 46; C.I. 110825; Aizen Cathilon Red 6BH; Astra Red 6B; Maxilon Red 6B; Red 6B; Cationic Red 6B; 1,3-Benzenedicarboxamide, N1,N3-bis[4-[[4-(dimethylamino)phenyl]azo]phenyl]-, hydrochloride; Sevron Red 6B
EINECS	229-227-1

Quality Control

Every batch of Astrazon Red 6B is manufactured and tested under a stringent quality management system to ensure it meets precise coloristic and chemical specifications. Our products undergo rigorous quality testing, including spectrophotometric analysis for strength and shade, to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, strength, and impurity profiles are available upon request 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 a controlled room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark Red Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Particle Size	≥ 95% passes 80 mesh

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