Description

3,3'-Dimethylnaphthidine is a high-purity aromatic diamine derivative of naphthidine, serving as a critical intermediate in advanced chemical synthesis. Its value lies in its role as a versatile building block for the production of dyes, pigments, and specialized polymers. This compound is essential for manufacturers and R&D laboratories in the chemical, pharmaceutical, and material science industries seeking reliable, high-quality intermediates for their processes.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes and high-performance organic pigments.
• Polymer Chemistry: Used in the production of polyimides and other heat-resistant polymers.
• Pharmaceutical Synthesis: Serves as a building block for certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Employed in organic synthesis and as a reagent in analytical chemistry applications.
• Liquid Crystal Materials: A potential intermediate in the manufacture of components for liquid crystal displays (LCDs).
• Cross-linking Agent: Can be utilized in epoxy resin systems and other cross-linking formulations.

Basic Information

Product Name	3,3'-Dimethylnaphthidine
CAS No.	13138-48-2
Molecular Formula	C22H20N2
Molecular Weight	312.41 g/mol
Synonyms	3,3'-Dimethylbenzidine; 3,3'-Dimethyl-1,1'-biphenyl-4,4'-diamine; N,N'-Bis(4-aminophenyl)-3,3'-dimethylbenzidine; 4,4'-Diamino-3,3'-dimethylbiphenyl; o-Tolidine (related isomer); Bianisidine (common name); [1,1'-Biphenyl]-4,4'-diamine, 3,3'-dimethyl-
EINECS	236-099-5

Quality Control

Our 3,3'-Dimethylnaphthidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles is provided with every shipment.

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 strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Light beige to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm

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