Description

3-Chloro-2-Methylbenzenediazonium is a specialized diazonium salt intermediate of significant importance in advanced organic synthesis. Its primary value lies in its reactivity, serving as a crucial precursor for the introduction of aryl groups and for the synthesis of complex heterocyclic compounds and azo dyes. This compound is essential for R&D chemists and production facilities in the fine chemical, pharmaceutical, and specialty dye industries seeking to develop novel molecular architectures.

Application

• Azo Coupling Reactions: A key electrophile for synthesizing a wide range of azo dyes and pigments with specific color properties.
• Sandmeyer-Type Reactions: Used as a precursor for synthesizing various chloro-, cyano-, and hydroxyl-substituted aromatic derivatives.
• Pharmaceutical Intermediate: Employed in the research and development of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Functional Material Synthesis: Building block for creating advanced materials, including liquid crystals and organic semiconductors.
• Cross-Coupling Reagents: Can be utilized in metal-catalyzed cross-coupling reactions to form biaryl structures.
• Chemical Derivatization: Used for labeling and functionalizing surfaces or polymers in analytical and material science.

Basic Information

Product Name	3-Chloro-2-Methylbenzenediazonium
CAS No.	45751-66-4
Molecular Formula	C7H6ClN2+ (typically as a salt, e.g., tetrafluoroborate)
Molecular Weight	Contact for details
Synonyms	3-Chloro-2-methylbenzenediazonium salt; 2-Methyl-3-chlorobenzenediazonium; Diazonium, (3-chloro-2-methylphenyl)-; (3-Chloro-2-methylphenyl)diazonium; 3-Chloro-o-tolyldiazonium; 2-Methyl-3-chlorobenzenediazonium cation; 3-Chloro-2-methylaniline diazonium salt
EINECS	Contact for details

Quality Control

Our 3-Chloro-2-Methylbenzenediazonium is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a battery of analytical tests including HPLC, NMR, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at temperatures between 2°C and 8°C (refrigerated) or as specified on the label. Due to its hygroscopic and easily oxidized nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to maintain stability and prevent decomposition.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder or solid
Identification (IR / NMR)	Conforms to structure
Assay (HPLC / Titration)	≥ 95% (Anhydrous Basis)
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Solubility	Soluble in polar aprotic solvents (e.g., DMF, acetonitrile)

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