Description

m-Tolidine CAS NO 84-67-3 is a high-purity aromatic diamine derivative of toluene, serving as a critical chemical intermediate and analytical reagent. Its primary value lies in its role as a precursor for the synthesis of dyes, pigments, and specialized polymers, where its molecular structure provides essential functional groups. This compound is particularly important for manufacturers and R&D laboratories in the chemical synthesis, analytical chemistry, and material science sectors.

Application

• Chemical Synthesis Intermediate: A key building block for manufacturing azo dyes, pigments, and colorants.
• Analytical Reagent: Used in colorimetric detection and analytical methods, particularly for the determination of oxidizing agents like chlorine and nitrites.
• Polymer Production: Acts as a monomer or chain extender in the synthesis of specialized polyurethanes, polyimides, and epoxy resins.
• Pharmaceutical Intermediates: Employed in the research and development of certain active pharmaceutical ingredients (APIs).
• Photographic Chemicals: Used in the formulation of specific photographic developers and sensitizers.
• Cross-linking Agent: Functions as a cross-linker in the production of high-performance elastomers and coatings.

Basic Information

Product Name	m-Tolidine
CAS No.	84-67-3
Molecular Formula	C14H16N2
Molecular Weight	212.29 g/mol
Synonyms	3,3'-Dimethylbenzidine; 4,4'-Diamino-3,3'-dimethylbiphenyl; o-Tolidine (common but technically incorrect for meta isomer); 3,3'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine; Bianisidine; Fast Dark Blue Base R; C.I. 37230; C.I. Azoic Diazo Component 113
EINECS	201-544-0

Quality Control

Our m-Tolidine is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification, assay, and impurity profiling. Certificates of Analysis (COA) detailing all test results are provided to guarantee compliance with your technical requirements and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in the original packaging or an opaque secondary container.

Specification

Item	Specification
Appearance	Off-white to light tan crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	129°C - 133°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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