Description

2,3,6,7-Tetramethyl-Naphthalene-1,4-Dicarboxylic Acid Diamide is a high-purity, multi-substituted naphthalene derivative with a rigid, planar molecular structure. This compound serves as a critical advanced intermediate for the synthesis of high-performance organic materials, where its specific substitution pattern is essential for tuning electronic and optical properties. It is primarily required by R&D and production teams in the organic electronics, specialty pigments, and pharmaceutical sectors seeking to develop novel functional molecules.

Application

• Organic Semiconductor Precursor: A key building block for the synthesis of n-type or ambipolar organic semiconductors used in OFETs (Organic Field-Effect Transistors) and OLED (Organic Light-Emitting Diode) transport layers.
• Functional Dye & Pigment Intermediate: Used in the development of high-performance pigments and dyes with enhanced lightfastness and thermal stability for automotive and industrial coatings.
• Pharmaceutical Research Intermediate: Serves as a scaffold or precursor in medicinal chemistry for the discovery of new active pharmaceutical ingredients (APIs), particularly those targeting specific protein interactions.
• Liquid Crystal & Optical Material Synthesis: Employed in the creation of discotic liquid crystals or other advanced optical materials due to its extended, planar aromatic core.
• Metal-Organic Framework (MOF) Ligand: Can be functionalized to act as a multi-dentate organic linker for constructing novel porous coordination polymers with specific pore geometries.
• Polymer Additive & Modifier: Used to modify polymer backbones to impart specific characteristics like UV stability, rigidity, or altered solubility in high-performance engineering plastics.

Basic Information

Product Name	2,3,6,7-Tetramethyl-Naphthalene-1,4-Dicarboxylic Acid Diamide
CAS No.	408539-51-5
Molecular Formula	C₁₈H₂₀N₂O₂
Molecular Weight	296.36 g/mol
Synonyms	1,4-Naphthalenedicarboxamide, 2,3,6,7-tetramethyl-; 2,3,6,7-Tetramethylnaphthalene-1,4-dicarboxamide; Naphthalene-1,4-dicarboxylic acid diamide, 2,3,6,7-tetramethyl-; 2,3,6,7-Tetramethyl-1,4-naphthalenedicarboxamide; TMNDA; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 2,3,6,7-Tetramethyl-Naphthalene-1,4-Dicarboxylic Acid Diamide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals	< 10 ppm

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