Description

4-[[4-(Dimethylamino)-o-Tolyl]Azo]-3-Methylpyridine 1-Oxide is a specialized azo dye intermediate characterized by its distinct pyridine N-oxide and dimethylamino-substituted aromatic structure. This compound is valued for its role in synthesizing high-performance colorants and functional materials with specific optical and electronic properties. It is primarily required by manufacturers in the dye and pigment, advanced material science, and research sectors seeking to develop novel chromophores.

Application

• Key intermediate for the synthesis of specialized azo dyes and pigments used in textiles, inks, and coatings.
• Precursor in the development of functional dyes for non-linear optics (NLO) and photonic applications.
• Research chemical for studying azo-hydrazone tautomerism and photochromic behavior in heterocyclic systems.
• Potential building block for metal complex dyes and colorants with enhanced lightfastness.
• Used in academic and industrial R&D for creating novel chromogenic sensors and indicators.
• Intermediate in fine chemical synthesis for specialized analytical reagents.

Basic Information

Product Name	4-[[4-(Dimethylamino)-o-Tolyl]Azo]-3-Methylpyridine 1-Oxide
CAS No.	19471-28-4
Molecular Formula	C15H18N4O
Molecular Weight	270.33 g/mol
Synonyms	4-[(4-Dimethylamino-2-methylphenyl)azo]-3-methylpyridine 1-oxide; 3-Methyl-4-[(2-methyl-4-(dimethylamino)phenyl)azo]pyridine 1-oxide; C.I. Disperse Yellow 201; Disperse Yellow 201; 4-((4-(Dimethylamino)-2-methylphenyl)diazenyl)-3-methylpyridine 1-oxide; Pyridine, 4-[[4-(dimethylamino)-2-methylphenyl]azo]-3-methyl-, 1-oxide
EINECS	Contact for details

Quality Control

Our production of 4-[[4-(Dimethylamino)-o-Tolyl]Azo]-3-Methylpyridine 1-Oxide adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, 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, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	Orange to red-brown powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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