Description

28 Basic Yellow 28 is a synthetic cationic dye belonging to the azo class, widely recognized for its vibrant and stable yellow coloration. This product is valued for its excellent substantivity to various substrates, particularly those with anionic character, making it a critical component in industrial dyeing and staining processes. It is primarily utilized by manufacturers in the textile, paper, leather, and specialty ink industries seeking reliable and consistent colorants for their products.

Application

• Textile Dyeing: Primary application for dyeing acrylic, modified polyamide, and other synthetic fibers.
• Paper Coloration: Used in the production of colored papers, tissues, and paperboard.
• Leather Finishing: Imparts color to leather goods in the tanning industry.
• Ink Manufacturing: A key pigment for specialty inks, including security and flexographic inks.
• Biological Staining: Employed as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: Used for mass coloration of certain plastics and polymer materials.

Basic Information

Product Name	28 Basic Yellow 28
CAS No.	74504-47-5
Molecular Formula	C21H26ClN3O3S
Molecular Weight	435.97 g/mol
Synonyms	Basic Yellow 28; C.I. 48054; Aizen Cathilon Yellow 3GLH; Astrazon Yellow 3GL; Maxilon Yellow 3GL; Sevron Yellow L; Sumiacryl Yellow N-3GL; Cationic Yellow 28
EINECS	Contact for details

Quality Control

Our production of 28 Basic Yellow 28 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. The product is manufactured under a quality system compliant with ISO standards, and each lot is tested against established internal specifications. A comprehensive Certificate of Analysis (COA) detailing purity, strength, and physical parameters is provided with every shipment to guarantee it meets our customers' application requirements.

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)	≥ 95.0%
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Freely soluble

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