Description

3-[(1,2-Dimethyl-1H-Indol-3-Yl)Azo]-1,5-Dimethyl-2-Phenyl-1H-Pyrazol-2-Ium is a high-purity, specialized azo dye intermediate with a distinct cationic structure. This compound matters for its role in synthesizing advanced colorants and functional dyes with specific optical and electronic properties. Industrial and research laboratories engaged in the development of specialty dyes, pigments, and functional materials require this precise chemical building block for product innovation and quality control.

Application

• Synthesis of Cationic Azo Dyes: A key intermediate for producing dyes used in textile applications, particularly for acrylic and modified polyamide fibers.
• Functional Dye Manufacturing: Used in the production of dyes for non-textile applications, including inks, coatings, and specialty papers.
• Research & Development: Serves as a critical reagent in academic and industrial R&D for exploring new chromophores and dye-polymer interactions.
• Analytical Chemistry: Can be utilized as a standard or reference material in chromatographic analysis and spectroscopic method development.
• Photographic and Imaging Chemicals: Potential use in the synthesis of light-sensitive compounds for specialized imaging technologies.

Basic Information

Product Name	3-[(1,2-Dimethyl-1H-Indol-3-Yl)Azo]-1,5-Dimethyl-2-Phenyl-1H-Pyrazol-2-Ium
CAS No.	70236-47-4
Molecular Formula	C21H23N5
Molecular Weight	345.44 g/mol
Synonyms	1,5-Dimethyl-2-phenyl-3-[(1,2-dimethyl-1H-indol-3-yl)azo]-1H-pyrazol-2-ium; C.I. Basic Red 29; Azoic diazo component 42; 2-Phenyl-1,5-dimethyl-3-[(1,2-dimethyl-1H-indol-3-yl)azo]-1H-pyrazol-2-ium; Cationic azo dye intermediate; 3-[(1,2-Dimethylindol-3-yl)azo]-1,5-dimethyl-2-phenylpyrazolium
EINECS	Contact for details

Quality Control

Our production of this specialty intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC and NMR to verify identity and composition. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and 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, well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

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%
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.