Description

Basic Blue 3 is a synthetic cationic (basic) dye belonging to the triarylmethane class, widely recognized for its vibrant blue color. This compound is valued for its strong affinity to polyanionic materials, making it an essential colorant and staining agent in several industrial and scientific processes. It is primarily utilized by manufacturers and laboratories in the textile, paper, biological staining, and specialty chemical sectors.

Application

• Textile Dyeing: Used for coloring acrylic fibers, silk, and wool, providing good lightfastness and wash fastness.
• Paper Coloring: Employed in the production of colored papers, including specialty and decorative papers.
• Biological Staining: A key component in histological and cytological stains, particularly for nucleic acid detection in microscopy.
• Ink Manufacturing: Serves as a colorant in the formulation of writing inks, stamp pad inks, and other dye-based inks.
• Leather Dyeing: Applied in the finishing process to impart a consistent blue shade to leather goods.
• Indicator Applications: Can be used as a pH indicator or in chemical reaction monitoring due to its color-changing properties.

Basic Information

Product Name	Basic Blue 3
CAS No.	33203-82-6
Molecular Formula	C20H26ClN3O
Molecular Weight	359.89 g/mol
Synonyms	Basic Blue 3; C.I. 51004; Victoria Blue B; Victoria Pure Blue B; Basic Blue K; Astra Blue B; Methyl Violet B; Aniline Blue B; C.I. Basic Blue 3; Basic Blue 3 (C.I. 51004); 4-((4-(Dimethylamino)phenyl)(4-(methylamino)-3-methylphenyl)methylene)-N,N-dimethylcyclohexa-2,5-dien-1-iminium chloride
EINECS	251-400-6

Quality Control

Our Basic Blue 3 is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against rigorous in-house specifications, which typically include identity confirmation, assay, and impurity profiling. Certificates of Analysis (COA) detailing all test 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 incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Dark green to blue powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Water Solubility	Freely soluble
Ash Content	≤ 0.5%

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