Description

1,3,3-Trimethyl-2-[[Methyl(p-Tolyl)Hydrazono]Methyl]-3H-Indolium Methyl Sulphate is a high-purity cationic dye intermediate and specialty chemical compound. This product is valued for its role as a key precursor in synthesizing advanced cyanine and polymethine dyes, which are critical for high-performance imaging and diagnostic applications. It is essential for manufacturers in the biotechnology, analytical chemistry, and photographic industries seeking reliable, high-quality intermediates for sensitive optical applications.

Application

• Cyanine Dye Synthesis: A crucial precursor for manufacturing near-infrared (NIR) fluorescent cyanine dyes used in bioimaging and medical diagnostics.
• Laser Dye Production: Used in the formulation of polymethine laser dyes for tunable dye lasers and optical gain media.
• Photographic Sensitizers: Serves as a spectral sensitizer in the production of specialized photographic emulsions and films.
• Optical Data Storage: A component in the development of materials for advanced optical recording and data storage technologies.
• Analytical Reagents: Employed in the synthesis of fluorescent probes and tags for biochemical assays and flow cytometry.
• Non-linear Optical Materials: Used in research and development of organic materials with non-linear optical (NLO) properties.

Basic Information

Product Name	1,3,3-Trimethyl-2-[[Methyl(p-Tolyl)Hydrazono]Methyl]-3H-Indolium Methyl Sulphate
CAS No.	73019-09-7
Molecular Formula	C21H27N3O4S
Molecular Weight	417.52 g/mol
Synonyms	Methyl(p-tolyl)hydrazonomethyl-1,3,3-trimethyl-3H-indolium methyl sulfate; 1,3,3-Trimethyl-2-[(methyl-p-tolylhydrazono)methyl]-3H-indolium methyl sulfate; Cyanine dye precursor 73019-09-7; Indolium, 1,3,3-trimethyl-2-[[methyl(p-tolyl)hydrazono]methyl]-, methyl sulfate; Trimethylindolenine cyanine dye intermediate; p-Tolylhydrazone indolenine dye salt
EINECS	Contact for details

Quality Control

Our production of 1,3,3-Trimethyl-2-[[Methyl(p-Tolyl)Hydrazono]Methyl]-3H-Indolium Methyl Sulphate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive applications. All material is characterized and tested against rigorous internal specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each 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). This compound is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to brown 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

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