Description

1,3,3-Trimethyl-2-[[Methyl(p-Tolyl)Hydrazono]Methyl]-3H-Indolium Hydrogen Sulphate is a specialized cationic dye intermediate and a key precursor in the synthesis of functional cyanine and indolenine dyes. This compound matters for its role in producing dyes and pigments with specific optical properties, including near-infrared absorption and fluorescence. It is primarily needed by manufacturers in the photographic, optical data storage, and biomedical imaging sectors, as well as by research institutions developing advanced chromophores.

Application

• Cyanine Dye Synthesis: A crucial building block for producing heptamethine and other polymethine cyanine dyes used in laser applications and optical recording media.
• NIR-Absorbing Pigments: Serves as a precursor for pigments and dyes that absorb in the near-infrared (NIR) region for security inks and stealth coatings.
• Fluorescent Probe Development: Used in research to create novel fluorescent labels and probes for bioimaging and diagnostic assays.
• Photographic Sensitizers: Employed in the formulation of advanced photographic emulsions and sensitizing dyes.
• Optical Data Storage Materials: A key intermediate for dyes used in recordable CDs, DVDs, and Blu-ray discs.
• Non-linear Optical Materials: Research and development of materials for photonics and electro-optics due to its indolenine-based structure.

Basic Information

Product Name	1,3,3-Trimethyl-2-[[Methyl(p-Tolyl)Hydrazono]Methyl]-3H-Indolium Hydrogen Sulphate
CAS No.	83949-69-3
Molecular Formula	C20H25N3O4S
Molecular Weight	403.50 g/mol
Synonyms	1,3,3-Trimethyl-2-[(methyl-p-tolylhydrazono)methyl]-3H-indolium hydrogen sulfate; 2-[[Methyl(4-methylphenyl)hydrazono]methyl]-1,3,3-trimethyl-3H-indolium hydrogen sulfate; 1,3,3-Trimethyl-2-[(methyl-p-tolylhydrazono)methyl]indoleninium hydrogen sulfate; Indoleninium, 2-[(methyl-p-tolylhydrazono)methyl]-1,3,3-trimethyl-, hydrogen sulfate; Fischer's Base p-Tolylhydrazone Hydrogen Sulfate (derivative)
EINECS	Contact for details

Quality Control

Our production of 1,3,3-Trimethyl-2-[[Methyl(p-Tolyl)Hydrazono]Methyl]-3H-Indolium Hydrogen Sulphate adheres to stringent quality protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing all critical parameters are provided with every shipment.

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 such as strong oxidizing agents. Due to its light-sensitive nature, handling and packaging should minimize exposure to direct light.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 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.