Description

C. I. Acid Blue 229 is a synthetic acid dye belonging to the anthraquinone chemical class, valued for its bright and stable blue hue. It is a critical component for achieving high-quality, wash-fast coloration on protein-based fibers like wool, silk, and nylon. This dye is essential for manufacturers in the textile, leather, and specialty paper industries seeking reliable and vibrant blue shades for their products.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and polyamide (nylon) fibers, offering good leveling and wash-fastness properties.
• Leather Finishing: Used for coloring leather goods, providing rich and uniform blue tones.
• Paper Staining: Employed in the production of specialty colored papers, including decorative and security papers.
• Ink Formulation: A colorant for certain types of inks, particularly where acid-dye compatibility is required.
• Biological Staining: Potential use as a histological stain in laboratory settings, depending on purity grade.

Basic Information

Product Name	C. I. Acid Blue 229
CAS No.	12219-36-2
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	696.66 g/mol
Synonyms	Acid Blue 229; C.I. 62059; Acid Blue AR; Telon Blue ARL; Nylosan Blue N-BL; Acid Anthraquinone Blue AR; 1-Amino-4-(3-((4-((2,5-dichlorophenyl)amino)-3-sulfonatophenyl)amino)-2,4-disulfonatophenyl)amino)anthraquinone disodium salt
EINECS	Contact for details

Quality Control

Our C. I. Acid Blue 229 is produced under a strict quality management system. Each batch is tested to ensure consistent strength, shade, and chemical purity. Key parameters such as dye content, solubility, and fastness properties are verified. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee compliance with your specifications.

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
Dye Content	≥ 95% (by HPLC)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Shade	Conforms to standard
Fastness Properties (Wool)	Wash: 4-5; Light: 5-6

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