Description

5-Chloro-2-Methoxyterephthalic Acid Hydrogen 1-Methyl Ester is a high-purity, specialized organic intermediate with significant utility in advanced chemical synthesis. Its unique substituted terephthalate structure makes it a valuable building block for creating complex molecules with tailored properties. This compound is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for developing active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for targeted therapies.
• Agrochemical Synthesis: Used in the research and development of new-generation herbicides and plant growth regulators.
• Liquid Crystal & OLED Materials: Acts as a functional monomer or intermediate for producing advanced electronic display and lighting materials.
• Polymer & Resin Modification: Incorporated into polymer backbones to impart specific chemical resistance, thermal stability, or optical properties.
• Dye & Pigment Manufacturing: Utilized in the synthesis of specialized colorants and high-performance pigments.
• Academic & Contract Research: Employed in organic chemistry research for method development and exploring new synthetic pathways.

Basic Information

Product Name	5-Chloro-2-Methoxyterephthalic Acid Hydrogen 1-Methyl Ester
CAS No.	75071-98-6
Molecular Formula	C10H9ClO5
Molecular Weight	244.63 g/mol
Synonyms	1-Methyl 5-chloro-2-methoxyterephthalate; Methyl 5-chloro-2-methoxy-1,4-benzenedicarboxylate; 5-Chloro-2-methoxyisophthalic acid 1-methyl ester; 5-Chloro-2-methoxybenzene-1,4-dicarboxylic acid monomethyl ester; 75071-98-6; Monomethyl 5-chloro-2-methoxyterephthalate
EINECS	Contact for details

Quality Control

Our production of 5-Chloro-2-Methoxyterephthalic Acid Hydrogen 1-Methyl Ester adheres to stringent in-process controls and final batch testing to ensure consistent purity and performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality system is designed to meet the exacting standards required for research and industrial-scale applications.

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. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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