Description

2,3-Dimethyl-5-[(2-Methyl-1H-Indol-3-Yl)Azo]-1-Phenyl-1H-Pyrazolium Chloride is a specialized cationic azo dye intermediate, known for its distinct chromophoric properties derived from the indole and pyrazole ring systems. This compound is valued for its ability to impart vivid color and its utility in synthesizing complex, high-performance dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for developing advanced coloring agents.

Application

• Synthesis of Cationic Dyes: A key intermediate for producing cationic (basic) dyes used in acrylic fiber dyeing.
• Specialty Ink Formulations: Used in the manufacture of high-quality inks for jet printing and security applications.
• Biological Staining Reagents: Potential use as a precursor for developing histochemical stains and indicators in laboratory settings.
• Functional Pigment Development: Serves as a building block for creating pigments with specific optical or electronic properties.
• Research & Development: Employed in academic and industrial R&D for exploring new chromophores and photoactive materials.
• Polymer Modification: Can be used to introduce colorant functionality into polymer chains during synthesis.

Basic Information

Item	Details
Product Name	2,3-Dimethyl-5-[(2-Methyl-1H-Indol-3-Yl)Azo]-1-Phenyl-1H-Pyrazolium Chloride
CAS No.	33639-59-7
Molecular Formula	C20H20ClN5
Molecular Weight	365.86 g/mol
Synonyms	2,3-Dimethyl-1-phenyl-5-[(2-methyl-1H-indol-3-yl)azo]-1H-pyrazolium chloride; Basic Red 29 (C.I. 11460); Azoic diazo component 42; Cationic azo dye intermediate; 1-Phenyl-2,3-dimethyl-5-[(2-methylindol-3-yl)azo]pyrazolium chloride; 3-[(2,3-Dimethyl-1-phenyl-1H-pyrazol-5-yl)azo]-2-methyl-1H-indole hydrochloride
EINECS	Contact for details

Quality Control

Our production of 2,3-Dimethyl-5-[(2-Methyl-1H-Indol-3-Yl)Azo]-1-Phenyl-1H-Pyrazolium Chloride adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. The material is characterized and tested against established in-house specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance processes.

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 sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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