Description

2-Methyl-1,4-Benzenedicarboxylic Acid is a high-purity aromatic dicarboxylic acid derivative, serving as a versatile and critical building block in advanced organic synthesis. Its unique methyl-substituted structure offers distinct reactivity and physical properties compared to its parent compound, making it valuable for creating specialized polymers and fine chemicals. This compound is essential for research and production in the pharmaceutical, agrochemical, and high-performance polymer industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules.
• Polymer & Resin Production: Used as a monomer or co-monomer to manufacture specialized polyesters, polyamides, and liquid crystal polymers (LCPs) with enhanced thermal and mechanical properties.
• Agrochemical Synthesis: Employed in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dye & Pigment Manufacturing: Acts as an intermediate for creating high-value, color-fast organic dyes and pigments.
• Fine Chemical Synthesis: Serves as a versatile building block for producing complex organic compounds used in material science and electronics.
• Research & Development: Utilized in academic and industrial R&D labs for exploring new synthetic pathways and novel material properties.

Basic Information

Product Name	2-Methyl-1,4-Benzenedicarboxylic Acid
CAS No.	5156-01-4
Molecular Formula	C9H8O4
Molecular Weight	180.16 g/mol
Synonyms	2-Methylterephthalic Acid; 2-Methyl-1,4-phthalic acid; 2-Methyl-p-benzenedicarboxylic Acid; 2-Methylbenzene-1,4-dicarboxylic acid; 4-Carboxy-2-methylbenzoic acid; 2-Methylterephthalate; 2-Methyl TPA; 2-Methyl-p-phthalic acid
EINECS	225-925-5

Quality Control

Our 2-Methyl-1,4-Benzenedicarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for demanding industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation and clumping.

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	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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