Description

4-[[(2-Cyanoethyl)Phenylhydrazono]Methyl]-N,N,n-Trimethylanilinium Methyl Sulphate is a specialized cationic dye intermediate and a functional organic salt with significant commercial importance. Its core value lies in its role as a key precursor for synthesizing advanced cyanine and polymethine dyes, which are critical for high-performance imaging and optical applications. This compound is essential for manufacturers in the photographic, optical data storage, and biomedical imaging sectors who require precise and reliable chemical building blocks.

Application

• Primary Intermediate for Cyanine Dyes: Serves as a crucial building block in the synthesis of heptamethine cyanine dyes used in near-infrared (NIR) fluorescence imaging.
• Optical Data Storage Media: Used in the production of dyes for recordable compact discs (CD-R) and digital versatile discs (DVD-R).
• Photographic Sensitizers: Acts as a spectral sensitizer in silver halide photographic emulsions to extend light sensitivity into specific wavelength ranges.
• Biomedical Research Reagents: Employed in the development of fluorescent probes and labels for bioassays, cell imaging, and diagnostic applications.
• Laser and Nonlinear Optical Materials: A precursor for dyes used in dye lasers and materials with nonlinear optical (NLO) properties.
• Industrial Colorants: Potential use in the formulation of specialized industrial inks and pigments requiring specific cationic properties.

Basic Information

Item	Detail
Product Name	4-[[(2-Cyanoethyl)Phenylhydrazono]Methyl]-N,N,n-Trimethylanilinium Methyl Sulphate
CAS No.	81173-67-3
Molecular Formula	C21H27N5O4S
Molecular Weight	445.53 g/mol
Synonyms	4-[(2-Cyanoethyl)(phenyl)hydrazonomethyl]-N,N,N-trimethylbenzenaminium methyl sulfate; Trimethyl[4-[[(2-cyanoethyl)phenylhydrazono]methyl]phenyl]ammonium methyl sulfate; Cyanine dye intermediate 81173-67-3; Cationic dye salt; Heptamethine cyanine dye precursor; NIR dye intermediate; Benzenaminium, N,N,N-trimethyl-4-[[(2-cyanoethyl)phenylhydrazono]methyl]-, methyl sulfate (1:1)
EINECS	Contact for details

Quality Control

Our production of 4-[[(2-Cyanoethyl)Phenylhydrazono]Methyl]-N,N,n-Trimethylanilinium Methyl Sulphate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity, which is critical for sensitive optical applications. Each lot is analyzed using advanced techniques like HPLC and NMR to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific impurity profiles is provided with every shipment to support your quality assurance and regulatory 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 sealed under dry conditions to prevent degradation. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange 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.