Description

Basic Yellow 57 is a cationic dye belonging to the azo class, widely recognized for its vibrant and stable yellow coloration. It is valued for its excellent substantivity to polyacrylonitrile fibers and other synthetic materials, providing consistent and durable results. This product is essential for manufacturers in the textile, paper, and leather industries seeking high-performance colorants for their dyeing and printing processes.

Application

• Textile Dyeing: Primary application for dyeing acrylic, modacrylic, and other synthetic fibers.
• Paper Coloration: Used in the production of specialty colored papers and paper products.
• Leather Finishing: Imparts color to leather goods in finishing processes.
• Ink Formulation: A component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings.
• Plastics and Polymers: For mass coloration of certain plastics and polymer materials.

Basic Information

Product Name	Basic Yellow 57
CAS No.	68391-31-1
Molecular Formula	C21H29N5O4S2
Molecular Weight	487.62 g/mol
Synonyms	C.I. Basic Yellow 57; Aizen Cathilon Yellow 5GLH; Astrazon Yellow 5GL; Basacryl Yellow 5GL; Maxilon Yellow 5GL; Sevron Yellow 5GL; Sumiacryl Yellow N-5GL; Yoracryl Yellow 5G
EINECS	Contact for details

Quality Control

Our Basic Yellow 57 is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, shade, and purity. A Certificate of Analysis (COA) detailing key parameters is provided with every shipment to guarantee consistency and traceability for our industrial partners.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3%
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Water Solubility	Freely soluble

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