Description

Basic Yellow 87 is a synthetic cationic dye belonging to the azo class, widely recognized for its vibrant and stable yellow hue. This product is essential for achieving consistent, high-intensity coloration in demanding industrial applications where colorfastness and performance are critical. It is primarily utilized by manufacturers in the textile, paper, and specialty ink industries for dyeing and printing processes.

Application

• Textile Dyeing: Primary application for dyeing acrylic, modified polyamide, and polyester fibers, offering excellent wash and light fastness.
• Paper Coloring: Used in the production of colored papers, tissues, and paperboard, providing uniform and bright coloration.
• Ink Formulation: A key pigment for manufacturing specialty inks, including inkjet and security inks, due to its color purity.
• Leather Finishing: Employed in the dyeing of leather goods to achieve consistent and durable yellow shades.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: For mass coloration of certain plastics where a stable yellow colorant is required.

Basic Information

Product Name	Basic Yellow 87
CAS No.	116844-55-4
Molecular Formula	C21H29N5O4S
Molecular Weight	447.55 g/mol
Synonyms	C.I. Basic Yellow 87; Aizen Cathilon Yellow 5GLH; Astrazon Yellow 5GL; Maxilon Yellow M-5GL; Basacryl Yellow X-5GL; Basic Bright Yellow 5GL; Cationic Yellow 5GL; 2-[[4-[Ethyl(3-sulfopropyl)amino]phenyl]azo]-1,3-dimethyl-1H-imidazol-3-ium
EINECS	Contact for details

Quality Control

Our Basic Yellow 87 is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise color strength, purity, and solubility specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to guarantee consistency and compliance with your 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)	Min. 95%
Color Strength	100 ± 5%
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Solubility in Water	Clear solution
pH (1% Solution)	4.0 - 7.0

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