Description

Acid Blue 232 is a synthetic acid dye belonging to the anthraquinone class, valued for its bright blue hue and good fastness properties. It is a critical component for achieving consistent and vibrant coloration in various industrial substrates. This dye is primarily utilized by manufacturers in the textile, leather, and paper industries seeking reliable and efficient blue colorants for their products.

Application

• Textile Dyeing: Used for dyeing wool, silk, and polyamide (nylon) fibers, providing good wash and light fastness.
• Leather Finishing: Applied in the coloration of leather goods, offering rich and uniform blue shades.
• Paper Coloring: Employed in the production of specialty papers, including decorative and packaging papers.
• Ink Formulation: Serves as a colorant in the manufacture of inks for various printing applications.
• Biological Staining: May be used as a histological stain in laboratory settings for microscopic analysis.

Basic Information

Product Name	Acid Blue 232
CAS No.	12219-38-4
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	696.70 g/mol
Synonyms	Acid Blue 232; C.I. 62055; Sodium 1-amino-4-[(4-aminophenyl)amino]-9,10-dihydro-9,10-dioxo-2-anthracenesulfonate; Acid Blue AS; Lanasyn Blue S-RBL; Supranol Blue BLW; Telon Blue ANL; Acid Anthraquinone Blue
EINECS	Contact for details

Quality Control

Our Acid Blue 232 is produced under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested for critical parameters including color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

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
Assay (HPLC)	≥ 95%
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.