Description

Basic Blue 57 is a synthetic cationic dye belonging to the triarylmethane class, widely recognized for its vibrant and stable blue coloration. Its primary commercial value lies in its excellent tinctorial strength and good fastness properties, making it a cost-effective choice for industrial coloring applications. This product is essential for manufacturers in the textile, paper, and specialty ink industries seeking reliable and consistent blue pigments for their processes.

Application

• Textile Dyeing: Primarily used for dyeing acrylic fibers, modacrylic, and other synthetic fibers, providing a bright blue shade.
• Paper Coloring: Employed in the production of colored papers, including specialty tissues, decorative papers, and security paper applications.
• Ink Manufacturing: A key pigment for formulating writing inks, stamp pad inks, and other aqueous-based ink systems.
• Leather Finishing: Used in the dyeing of leather goods to achieve uniform and durable blue finishes.
• Biological Staining: Finds application as a histological stain in laboratory settings for microscopic analysis.
• Specialty Coatings: Incorporated into coatings and paints where a specific blue hue is required.

Basic Information

Product Name	Basic Blue 57
CAS No.	12221-31-7
Molecular Formula	C20H26N3O4S+ • Cl-
Molecular Weight	431.96 g/mol (for cation)
Synonyms	Aizen Cathilon Blue 5GH; Astrazon Blue BG; Basic Blue 57; C.I. 52015; Maxilon Blue 5G; Pyrocatechol Blue; 4-[(4-Dimethylamino)phenyl][4-(ethylamino)-1-naphthyl]methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium chloride; Cationic Blue 57
EINECS	235-402-6

Quality Control

Every batch of Basic Blue 57 is manufactured and tested under a strict quality management system to ensure consistent performance and purity. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, detailing key parameters such as color strength, shade, and impurity profile.

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
Assay (HPLC)	Min. 95%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Water Solubility	Completely soluble

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