Description

Ethyl Methyl Terephthalate (CAS No. 22163-52-6) is a high-purity organic compound with the molecular formula C₁₁H₁₂O₄. This diester derivative of terephthalic acid is widely utilized in polymer research, specialty chemical synthesis, and material science applications. The compound is characterized by its clear to pale-yellow appearance and is supplied as a crystalline solid or solution, depending on customer requirements.

Our Ethyl Methyl Terephthalate is rigorously tested to meet the highest purity standards (>98% by GC analysis), with detailed technical specifications including melting point, boiling point, and solubility data available upon request. The product is packaged under inert atmosphere to ensure stability and long shelf life, with options for amber glass bottles or custom bulk quantities.

Key applications include its use as:

• Monomer precursor for modified polyester synthesis
• Intermediate in pharmaceutical development
• Research chemical for studying esterification reactions

Safety data sheets and certificates of analysis are provided with all orders. Custom synthesis and special packaging options available for industrial and academic researchers.

Properties

• CAS Number: 22163-52-6
• Complexity: 229
• IUPAC Name: O4-ethyl O1-methyl benzene-1,4-dicarboxylate
• InChI: InChI=1S/C11H12O4/c1-3-15-11(13)9-6-4-8(5-7-9)10(12)14-2/h4-7H,3H2,1-2H3
• InChI Key: SGPZSOQUJLFTMQ-UHFFFAOYSA-N
• Exact Mass: 208.07355886
• Molecular Formula: C11H12O4
• Molecular Weight: 208.21
• SMILES: CCOC(=O)C1=CC=C(C=C1)C(=O)OC
• Topological: 52.6
• Monoisotopic Mass: 208.07355886
• Synonyms: ethyl methyl terephthalate, 22163-52-6, 1,4-Benzenedicarboxylic acid, ethyl methyl ester, 1-ETHYL 4-METHYL BENZENE-1,4-DICARBOXYLATE, 4-O-ethyl 1-O-methyl benzene-1,4-dicarboxylate, 1,4-Benzenedicarboxylic acid 1-ethyl 4-methyl ester, Methyl ethyl terephthalate, MFCD06204313, 1I7OES0DLI, Ethyl methyl p-benzenedicarboxylate, 1,4-Benzenedicarboxylic acid, 1-ethyl 4-methyl ester, Terephthalic acid, ethyl methyl ester, ethylmethylterephthalate, UNII-1I7OES0DLI, SCHEMBL4444431, SCHEMBL11320755, DTXSID60344336, SGPZSOQUJLFTMQ-UHFFFAOYSA-N, 1-Ethyl 4-methyl terephthalate #, XAA16352, AKOS028108694, p-methoxycarbonylbenzoic acid ethyl ester, AS-58676, SY243410, CS-0059909, NS00112912, A11771

Application

Ethyl Methyl Terephthalate serves as a versatile intermediate in polymer chemistry, particularly in the development of specialized polyester materials with tailored properties. Researchers utilize this compound to study structure-property relationships in modified PET analogs. The differential reactivity of the ethyl and methyl ester groups enables selective transformations in multi-step synthetic pathways. In material science, it finds application as a model compound for investigating crystallization behavior of asymmetric aromatic diesters.

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.