Description

1,2,3,4-Benzenetetracarboxylic Acid 1,4-Dimethyl Ester is a high-purity, partially esterified derivative of pyromellitic acid, serving as a critical synthetic intermediate and building block in advanced polymer chemistry. Its value lies in providing controlled functionality for creating specialized materials with tailored thermal and mechanical properties. This compound is essential for R&D and production teams in the polymer, specialty chemical, and pharmaceutical industries seeking to develop high-performance resins, plasticizers, or active pharmaceutical ingredients (APIs).

Application

• Polymer & Resin Synthesis: A key monomer for producing high-performance polyimides, polyesters, and alkyd resins, imparting excellent thermal stability and chemical resistance.
• Plasticizer & Additive Manufacturing: Used in the synthesis of specialty plasticizers and additives to enhance the flexibility and durability of PVC and other polymers.
• Pharmaceutical Intermediates: Serves as a versatile building block in the multi-step synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Crosslinking Agent: Functions as a crosslinker in coatings, adhesives, and elastomers to improve hardness, scratch resistance, and network density.
• Dye & Pigment Production: Employed as an intermediate in the manufacture of high-value organic pigments and dyes for inks and coatings.
• Laboratory Research & Development: A valuable reagent for academic and industrial R&D in organic synthesis and material science.

Basic Information

Product Name	1,2,3,4-Benzenetetracarboxylic Acid 1,4-Dimethyl Ester
CAS No.	21895-62-5
Molecular Formula	C12H10O8
Molecular Weight	282.20 g/mol
Synonyms	Pyromellitic Acid 1,4-Dimethyl Ester; 1,4-Dimethyl Pyromellitate; 1,2,3,4-Benzenetetracarboxylic Acid Tetramethyl Ester (Partial Ester); Benzene-1,2,3,4-tetracarboxylic Acid 1,4-Dimethyl Ester; Tetramethyl Ester of Pyromellitic Acid (Partial); PMDA 1,4-Dimethyl Ester; 1,2,3,4-Benzenetetracarboxylic Acid, 1,4-Dimethyl Ester; Dimethyl Pyromellitate
EINECS	Contact for details

Quality Control

Our 1,2,3,4-Benzenetetracarboxylic Acid 1,4-Dimethyl Ester is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure consistent purity and meets the specifications required for high-end industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and quality assurance.

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 heat sources and incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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