Description

Acid Blue 90 is a synthetic anthraquinone dye known for its brilliant blue color and excellent lightfastness. This high-performance colorant is valued for its ability to deliver consistent, vibrant shades with strong tinctorial strength. It is primarily used in industrial applications where durable coloration is required, serving sectors such as textile manufacturing, specialty inks, and paper coloring. Our supply ensures consistent quality and reliable performance for demanding production environments.

Application

• Textile Dyeing: Used for dyeing wool, silk, and polyamide fibers to achieve bright, wash-fast blue shades.
• Ink Manufacturing: A key pigment for producing specialty inks, including security inks and high-quality printing inks.
• Paper Coloring: Employed in the production of colored papers and paper products requiring light stability.
• Leather Finishing: Applied in the dyeing of leather goods to provide rich, uniform blue coloration.
• Biological Staining: Utilized as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: Incorporated for coloring certain types of plastics where anthraquinone dyes are compatible.

Basic Information

Product Name	Acid Blue 90
CAS No.	6104-58-1
Molecular Formula	C₄₇H₄₈N₃NaO₇S₂
Molecular Weight	854.0 g/mol
Synonyms	Acid Blue AS; C.I. Acid Blue 90; Alizarine Brilliant Blue BS; Anthraquinone Blue; Wool Blue BS; Acid Blue BS; C.I. 42655; Sodium 1-amino-4-(cyclohexylamino)-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate
EINECS	228-058-4

Quality Control

Our Acid Blue 90 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets precise colorant specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and 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). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Conforms
Shade	Standard
Light Fastness	≥ 6 (ISO 105-B02)

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