Description

n-[4-[(4-Amino-3-Sulfonatophenyl)(3-Methyl-4-Methylamino-5-Sodiosulfophenyl)Methylene]-2-Sodiosulfo-2,5-Cyclohexadien-1-Ylidene]Methanaminium is a high-purity, water-soluble anionic dye intermediate characterized by its complex sulfonated aromatic structure. This compound is essential for synthesizing specialized dyes and pigments, offering excellent color strength and stability in demanding formulations. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries who require consistent, high-performance intermediates for producing vibrant and durable colorants.

Application

• Textile Dye Synthesis: A key intermediate for producing acid dyes and reactive dyes used on wool, silk, and polyamide fibers.
• Ink & Toner Manufacturing: Used in the formulation of high-quality colorants for inks, including those for digital printing and packaging.
• Specialty Pigment Production: Serves as a precursor for creating complex organic pigments with enhanced lightfastness and weather resistance.
• Biological Staining: Potential use as an intermediate for synthesizing histological stains and diagnostic dyes in life sciences.
• Functional Dye Development: Employed in research and production of dyes for non-textile applications, such as sensors or optical materials.
• Paper Coloring: Can be used in the manufacture of dyes for high-grade paper and specialty paper products.

Basic Information

Product Name	n-[4-[(4-Amino-3-Sulfonatophenyl)(3-Methyl-4-Methylamino-5-Sodiosulfophenyl)Methylene]-2-Sodiosulfo-2,5-Cyclohexadien-1-Ylidene]Methanaminium
CAS No.	5844-04-2
Molecular Formula	C22H22N3Na2O9S3
Molecular Weight	637.58 g/mol
Synonyms	Acid Blue 92 (C.I. 13390); Wool Blue B; Sulphan Blue; C.I. 13390; Acid Blue AS; Aminium, N-[4-[(4-amino-3-sulfonatophenyl)(3-methyl-4-(methylamino)-5-sulfonatophenyl)methylene]-2-sulfo-2,5-cyclohexadien-1-ylidene]methanaminium, disodium salt; 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]-6-(phenylazo)-, disodium salt (related isomer).
EINECS	Contact for details

Quality Control

Our production of n-[4-[(4-Amino-3-Sulfonatophenyl)(3-Methyl-4-Methylamino-5-Sodiosulfophenyl)Methylene]-2-Sodiosulfo-2,5-Cyclohexadien-1-Ylidene]Methanaminium adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. The material is tested against established specifications for identity, assay, and impurity profiles using advanced analytical techniques. Certificates of Analysis (COA) detailing all test results are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Completely soluble

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