Description

2-[2-[4-[(2-Hydroxyethyl)Methylamino]Phenyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Chloride CAS NO 68140-79-4 is a specialized cationic dye intermediate belonging to the cyanine dye family, valued for its strong light absorption and fluorescence properties. This compound is critical for applications requiring precise color control and photostability in advanced materials. It is primarily needed by manufacturers in the optical recording media, biological staining, and specialty ink and dye industries.

Application

• Optical Data Storage: A key intermediate in the synthesis of cyanine dyes used for recordable CD-R and DVD-R media.
• Biological Staining & Fluorescence Probes: Used in the development of fluorescent markers for cellular imaging and diagnostic assays in life sciences.
• Laser Dyes & Photonic Materials: Serves as a precursor for dyes used in tunable lasers and other non-linear optical applications.
• Specialty Inks & Coatings: Employed in the formulation of high-performance inks requiring specific spectral properties and durability.
• Chemical Synthesis: Acts as a versatile building block for synthesizing more complex cyanine and polymethine dyes.
• Sensitizers in Photography: Used in the production of spectral sensitizers for photographic emulsions.

Basic Information

Product Name	2-[2-[4-[(2-Hydroxyethyl)Methylamino]Phenyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Chloride
CAS No.	68140-79-4
Molecular Formula	C22H27ClN2O
Molecular Weight	370.92 g/mol
Synonyms	Basic Blue 20; Astrazon Blue BG; 1,3,3-Trimethyl-2-[2-[4-[(2-hydroxyethyl)methylamino]phenyl]ethenyl]-3H-indolium chloride; C.I. 56085; 2-[2-[4-(N-Methyl-N-2-hydroxyethylamino)phenyl]vinyl]-1,3,3-trimethyl-3H-indolium chloride; 3H-Indolium, 2-[2-[4-[(2-hydroxyethyl)methylamino]phenyl]ethenyl]-1,3,3-trimethyl-, chloride; Cationic Blue 20; Aizen Cathilon Blue BG
EINECS	Contact for details

Quality Control

Our production of 2-[2-[4-[(2-Hydroxyethyl)Methylamino]Phenyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Chloride adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and high-grade quality suitable for sensitive applications. Certificates of Analysis (COA) detailing all specifications are available upon request.

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 degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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