Description

3,4-Dimethyl-o-phenylenediamine is a specialized aromatic diamine derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its dual amine functionality and substituted aromatic ring, which make it a versatile precursor for creating complex heterocyclic compounds and functional polymers. This high-purity intermediate is essential for manufacturers in the pharmaceutical, agrochemical, and specialty dye industries who require reliable, consistent raw materials for research and production.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of benzimidazole derivatives and other nitrogen-containing heterocycles with potential biological activity.
• Agrochemical Synthesis: Used in the production of advanced fungicides, herbicides, and plant growth regulators.
• Polymer & Resin Modifier: Acts as a curing agent or chain extender in epoxy and polyurethane systems, enhancing thermal and mechanical properties.
• Dye & Pigment Manufacturing: Intermediate for producing azo dyes and pigments, particularly for high-performance applications requiring specific color fastness.
• Chemical Research & Development: Valuable reagent in organic synthesis for constructing complex molecular architectures in academic and industrial R&D settings.
• Corrosion Inhibitor Formulation: Component in specialty formulations designed to protect metals in harsh industrial environments.

Basic Information

Product Name	3,4-Dimethyl-o-phenylenediamine
CAS No.	41927-01-9
Molecular Formula	C8H12N2
Molecular Weight	136.20 g/mol
Synonyms	3,4-Dimethyl-1,2-benzenediamine; 3,4-Dimethyl-1,2-phenylenediamine; 1,2-Diamino-3,4-dimethylbenzene; o-Phenylenediamine, 3,4-dimethyl-; 3,4-Dimethylbenzene-1,2-diamine; 3,4-Xylylenediamine; 3,4-DMPD
EINECS	Contact for details

Quality Control

Our 3,4-Dimethyl-o-phenylenediamine is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from heat, sparks, open flames, and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 100 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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