Description

2,3,6,7-Tetramethyl-Naphthalene-1,4-Dicarboxylic Acid is a high-purity, multi-methylated naphthalene dicarboxylic acid derivative, serving as a critical advanced intermediate in organic synthesis. Its value lies in its rigid, sterically hindered structure, which is essential for constructing complex molecules with precise electronic and spatial properties. This compound is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel active ingredients and functional organic materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in oncology and antiviral research.
• Agrochemical Synthesis: Used in the development of advanced herbicides and plant growth regulators with enhanced efficacy.
• Organic Electronic Materials: Serves as a precursor for n-type semiconductors, organic light-emitting diodes (OLEDs), and other electronic materials due to its electron-deficient core.
• Ligand and Catalyst Development: Utilized to create sterically demanding ligands for transition metal catalysis.
• Polymer Chemistry: Acts as a monomer or co-monomer for producing high-performance, heat-resistant polymers and polyimides.
• Dye and Pigment Intermediate: Employed in the synthesis of specialized colorants and fluorescent markers.
• Academic and Industrial R&D: Fundamental research reagent for studying structure-activity relationships and novel organic reactions.

Basic Information

Product Name	2,3,6,7-Tetramethyl-Naphthalene-1,4-Dicarboxylic Acid
CAS No.	925890-17-1
Molecular Formula	C₁₆H₁₆O₄
Molecular Weight	272.30 g/mol
Synonyms	1,4-Naphthalenedicarboxylic acid, 2,3,6,7-tetramethyl-; 2,3,6,7-Tetramethylnaphthalene-1,4-dicarboxylic acid; Naphthalene-1,4-dicarboxylic acid, 2,3,6,7-tetramethyl-; TMNDA; Tetramethyl NDCA; 2,3,6,7-Tetramethyl-1,4-naphthalenedicarboxylic acid
EINECS	Contact for details

Quality Control

Our 2,3,6,7-Tetramethyl-Naphthalene-1,4-Dicarboxylic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, documenting all critical quality attributes. Our production adheres to cGMP principles where applicable, ensuring reliability for sensitive R&D and scale-up processes.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed in a dry environment to prevent degradation. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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