Description

Dimethyl 2-Isocyanatoterephthalate is a high-purity, functionalized aromatic ester derivative, serving as a critical building block in advanced organic synthesis. Its value lies in the dual reactivity of the isocyanate and ester functional groups, enabling precise polymer modifications and the creation of novel heterocyclic compounds. This intermediate is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop new active ingredients or materials with tailored properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with terephthalate backbones.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and plant growth regulators that require specific isocyanate chemistry.
• Polymer Modification: Acts as a reactive monomer or cross-linking agent for polyurethanes, polyamides, and other high-performance polymers to enhance thermal or mechanical properties.
• Dye and Pigment Manufacturing: Intermediate for producing specialized colorants and optical brighteners with improved fastness and solubility.
• Liquid Crystal & OLED Materials: Building block for synthesizing advanced organic electronic materials and liquid crystal monomers.
• Chemical Research & Development: Versatile reagent for exploring new reaction pathways and creating custom chemical libraries in academic and industrial labs.

Basic Information

Product Name	Dimethyl 2-Isocyanatoterephthalate
CAS No.	179114-94-4
Molecular Formula	C11H9NO5
Molecular Weight	235.19 g/mol
Synonyms	Dimethyl 2-isocyanato-1,4-benzenedicarboxylate; 2-Isocyanatoterephthalic Acid Dimethyl Ester; Terephthalic Acid, 2-Isocyanato-, Dimethyl Ester; 1,4-Benzenedicarboxylic acid, 2-isocyanato-, dimethyl ester; Dimethyl Isocyanatoterephthalate
EINECS	Contact for details

Quality Control

Our Dimethyl 2-Isocyanatoterephthalate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive synthesis applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each 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 place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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