Description

True Blue CAS NO 65426-90-6 is a high-purity, synthetic organic dye belonging to the triarylmethane class, widely recognized for its intense and stable blue coloration. This compound is valued for its excellent tinctorial strength and compatibility with various substrates, making it a critical component in demanding industrial applications. It is primarily utilized by manufacturers in the textile, ink, plastics, and specialty coatings industries seeking reliable and consistent colorants.

Application

• Textile Dyeing and Printing: Used for coloring natural and synthetic fibers, providing vibrant and wash-fast blue hues.
• Ink Formulation: A key pigment in the production of printing inks for packaging, publications, and security applications.
• Plastics and Polymer Coloring: Imparts stable color to a wide range of thermoplastic and thermoset materials during masterbatch production.
• Industrial Coatings and Paints: Employed in solvent-based and water-based coating systems for automotive, industrial, and decorative finishes.
• Paper Coloring: Used in surface coating and mass coloration of paper and paperboard products.
• Biological Staining: Serves as a histological stain in laboratory settings for microscopic analysis.
• Specialty Applications: Potential use in dye-sensitized solar cells (DSSCs) and other advanced material research.

Basic Information

Product Name	True Blue CAS NO 65426-90-6
CAS No.	65426-90-6
Molecular Formula	C37H27N3Na2O9S3
Molecular Weight	799.80 g/mol
Synonyms	Acid Blue 90; C.I. 42655; Erioglaucine A; Patent Blue AE; Food Blue 5; L-Blau 3; Wool Blue B; Aniline Blue, water soluble; Triphenylmethane Blue; [4-[α-[4-(Diethylamino)phenyl]-2,4-disulfobenzhydrylidene]-2,5-cyclohexadien-1-ylidene]diethylammonium hydroxide inner salt sodium salt
EINECS	265-768-2

Quality Control

Our True Blue CAS NO 65426-90-6 is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, purity, and solubility. We provide Certificates of Analysis (COA) with key parameters to guarantee batch-to-batch consistency and compliance with relevant industry standards. Specifications can be tailored to meet specific customer requirements for technical, cosmetic, or food-grade applications where legally permitted.

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 (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to blue-violet powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 85% (as dye content)
Loss on Drying	≤ 10.0 %
Sulfated Ash	≤ 30.0 %
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm

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