Description

Acid Blue 158 is a synthetic acid dye belonging to the anthraquinone class, valued for its bright and stable blue hue. This dye is engineered to deliver excellent color fastness and compatibility in demanding industrial applications, ensuring consistent and reliable performance. It is primarily utilized by manufacturers in the textile, leather, and paper industries for dyeing and printing processes where vibrant, durable coloration is required.

Application

• Textile Dyeing: Used for dyeing nylon, silk, wool, and other protein fibers to achieve a brilliant blue shade with good wash and light fastness.
• Leather Finishing: Applied in the coloration of leather goods, providing deep, uniform penetration and color stability.
• Paper Coloring: Employed in the production of specialty papers, decorative papers, and security papers requiring specific colorants.
• Ink Formulation: Serves as a colorant component in the manufacture of inks for various printing applications.
• Biological Staining: May be used in specific histological or microbiological staining protocols as a selective dye.
• Polymer Coloring: Incorporated into certain plastics and synthetic materials during manufacturing for mass coloration.

Basic Information

Product Name	Acid Blue 158
CAS No.	6370-08-7
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	696.66 g/mol
Synonyms	Acid Blue 158; C.I. 62055; Acid Blue AS; Anthraquinone Blue; Sodium 1-amino-4-(cyclohexylamino)-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate; Acid Leather Blue 2R; Supranol Blue BL; Telon Blue ANL
EINECS	228-904-9

Quality Control

Our Acid Blue 158 is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against established specifications for color strength, shade, solubility, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical 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). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%
Purity (HPLC)	≥ 95.0%

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