Description

Night Blue CAS NO 4692-38-0 is a synthetic organic colorant belonging to the triarylmethane dye class, valued for its intense and stable blue hue. This compound is critical for industries requiring precise and durable coloration in their products. It is primarily utilized in the manufacturing of inks, coatings, and specialty papers, as well as in biological staining applications within life sciences.

Application

• Manufacturing of writing and printing inks for consistent color performance.
• Production of industrial and decorative coatings and paints.
• Coloration of specialty papers and textiles.
• Use as a biological stain in microscopy and histology laboratories.
• Formulation of colorants for plastics and polymers.
• Component in the production of dyes and pigments for various industrial applications.
• Research and development applications in chemical synthesis.

Basic Information

Product Name	Night Blue
CAS No.	4692-38-0
Molecular Formula	C₃₃H₄₀ClN₃
Molecular Weight	514.14 g/mol
Synonyms	Night Blue; Basic Blue 11; Victoria Blue R; C.I. 44040; Aniline Blue, Spirit Soluble; Spirit Soluble Aniline Blue; Solvent Blue 5; Victoria Blue B (related); [4-[[4-(Dimethylamino)phenyl][4-(phenylamino)-1-naphthyl]methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium chloride
EINECS	225-168-6

Quality Control

Our Night Blue is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling. Certificates of Analysis (COA) documenting 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to greenish-blue powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Ash Content	≤ 1.0%
Solubility	Soluble in ethanol, chloroform; slightly soluble in water

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