Description

C.I.Acid Blue 201 is a synthetic acid dye belonging to the anthraquinone chemical class, identified by CAS No. 12219-29-3. It is valued for its bright, vivid blue hue and excellent colorfastness properties, particularly under acidic conditions. This dye is essential for industrial applications requiring durable and vibrant coloration of protein-based fibers like wool, silk, and nylon, as well as in specialized technical fields.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers, providing excellent wash and light fastness.
• Leather Coloring: Used in the tanning industry to impart a stable blue color to leather goods.
• Paper Staining: Employed for the coloration of specialty papers and paper products.
• Ink Formulation: A component in the manufacturing of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Functional Material Additive: Can be incorporated into polymers or coatings for aesthetic or functional color effects.

Basic Information

Product Name	C.I.Acid Blue 201
CAS No.	12219-29-3
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	696.68 g/mol
Synonyms	Acid Blue 201; C.I. 62110; Acid Blue ARL; Aminyl Blue F-GL; Airedale Blue 2G; Atul Acid Blue 2G; Acid Blue 2G; Acid Leather Blue 2G; Anthraquinone Blue ARL
EINECS	Contact for details

Quality Control

Our C.I.Acid Blue 201 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent purity, color strength, and application performance. A Certificate of Analysis (COA) detailing key parameters such as assay, shade, solubility, and impurity profile is provided with each shipment to guarantee it meets your specific 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 strong oxidizing agents.

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.