Description

Acid Blue 161 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 durable coloration in various industrial substrates. This dye is primarily utilized by manufacturers in the textile, leather, and paper industries seeking high-performance colorants for their finishing processes.

Application

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

Basic Information

Product Name	Acid Blue 161
CAS No.	6505-92-6
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	696.68 g/mol
Synonyms	Acid Blue 161; C.I. 15706; Acid Blue AS; Anthraquinone Blue 161; Sodium 1-amino-4-[(4-aminophenyl)amino]-9,10-dihydro-9,10-dioxo-2-anthracenesulfonate; Lissamine Blue 161; Acid Leather Blue 161; Supranol Blue 161
EINECS	229-409-2

Quality Control

Our Acid Blue 161 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against established specifications for critical parameters including color strength, shade, solubility, and impurity profile. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee 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 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.