Description

Acid Blue 129 is a synthetic anthraquinone dye known for its bright, clear blue color and good lightfastness. This product is valued for its ability to provide consistent, high-quality coloration in demanding industrial applications. It is primarily used by manufacturers in the textile, leather, and specialty paper industries seeking reliable and vibrant blue dyes.

Application

• Textile Dyeing: Used for dyeing wool, silk, and polyamide fibers to achieve a bright blue shade.
• Leather Finishing: Applied in the coloration of leather goods, providing rich and durable blue tones.
• Paper Coloring: Employed in the production of specialty and decorative papers.
• Ink Formulation: Serves as a colorant for certain types of inks and toners.
• Biological Staining: Used in specific histological and microbiological staining applications.
• Plastics and Polymers: Can be utilized for coloring certain types of plastics where compatibility is confirmed.

Basic Information

Product Name	Acid Blue 129
CAS No.	6397-02-0
Molecular Formula	C32H28N4Na2O8S2
Molecular Weight	730.76 g/mol
Synonyms	Acid Blue AS; C.I. 62058; Acid Blue AS (C.I. 62058); Sodium 1-amino-4-[(4-((4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino)-2-sulfonatophenyl)amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulfonate; Anthraquinone Blue 129; Acid Blue 2G; Supranol Blue GW; Telon Blue ANL; Acid Leather Blue GW
EINECS	229-012-2

Quality Control

Our Acid Blue 129 is produced under a strict quality management system. Each batch undergoes rigorous testing to ensure it meets precise color strength, purity, and application performance specifications. A Certificate of Analysis (COA) detailing key parameters such as assay, shade, and solubility is provided with every shipment to guarantee consistent quality and traceability.

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	Dark blue powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%

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