Description

Acid Blue 202 is a synthetic anthraquinone-based acid dye known for its bright and stable blue color. It is valued for its excellent lightfastness, wash fastness, and compatibility with various substrates, providing reliable and consistent coloration. This dye is essential for manufacturers in the textile, leather, and specialty paper industries seeking high-performance blue shades.

Application

• Primary dyeing and printing of polyamide (nylon) fibers and textiles.
• Coloration of silk, wool, and other protein-based fibers.
• Leather finishing and dyeing for apparel, upholstery, and accessories.
• Production of colored paper, specialty papers, and security paper products.
• As a colorant for inks and toners in specific printing applications.
• Potential use in the coloration of anodized aluminum.

Basic Information

Product Name	Acid Blue 202
CAS No.	12643-05-9
Molecular Formula	C20H13N2NaO5S
Molecular Weight	416.38 g/mol
Synonyms	Acid Blue AS; C.I. Acid Blue 202; Acid Blue A; Sodium 1-amino-4-(cyclohexylamino)-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate; 1-Amino-4-(cyclohexylamino)anthraquinone-2-sulfonic acid sodium salt; Acid Leather Blue A; Nylosan Blue F-2RL; Telon Blue ANL
EINECS	Contact for details

Quality Control

Our Acid Blue 202 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent strength, shade, and purity. Certificates of Analysis (COA) detailing key parameters such as color strength, solubility, and impurity profile are available upon request.

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 powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Shade	Conforms to standard
Solubility in Water	Conforms

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