{"id":30835,"date":"2026-09-13T09:35:01","date_gmt":"2026-09-13T08:35:01","guid":{"rendered":"https:\/\/purematrixchem.com\/?post_type=product&#038;p=30835"},"modified":"2026-09-13T10:18:57","modified_gmt":"2026-09-13T09:18:57","slug":"dimethyl-terephthalate","status":"publish","type":"product","link":"https:\/\/purematrixchem.com\/ro\/magazin\/aromatic-esters\/dimethyl-terephthalate\/","title":{"rendered":"Dimethyl Terephthalate"},"content":{"rendered":"<h1>Dimethyl Terephthalate \u2014 H<strong>igh Purity Research Chemicals Supplier <\/strong><\/h1>\n<h2>1. Chemical Structure<\/h2>\n<p>Dimethyl terephthalate is the <strong>dimethyl ester of terephthalic acid<\/strong>. Its structure contains a benzene ring substituted at the 1,4 positions by two methyl ester groups.<\/p>\n<p>The para-oriented arrangement of the two ester functionalities is an important structural feature and distinguishes dimethyl terephthalate from positional isomers such as dimethyl isophthalate and dimethyl phthalate.<\/p>\n<h2>2. Physical and Chemical Properties<\/h2>\n<p><a href=\"https:\/\/researchchemicalprime.com\/\" target=\"_blank\" rel=\"noopener\">Research Chemical Prime<\/a> reports a molecular weight of approximately <strong>194.18 g\/mol<\/strong>, an XlogP3 value of approximately <strong>2.2<\/strong>, four hydrogen-bond acceptors, and no hydrogen-bond donors.<\/p>\n<p>Reference chemical specifications commonly describe dimethyl terephthalate as a <strong>white solid<\/strong>. A commercial analytical reference lists a melting range of approximately <strong>140\u2013143 \u00b0C<\/strong>.<\/p>\n<p>Other reported characteristics should be interpreted according to the particular grade and analytical specification of the material.<\/p>\n<h2>3. Chemical Classification<\/h2>\n<p>Dimethyl terephthalate can be classified as:<\/p>\n<ul>\n<li>Aromatic diester<\/li>\n<li>Terephthalic-acid derivative<\/li>\n<li>Benzene dicarboxylate ester<\/li>\n<li>Polyester-industry intermediate<\/li>\n<\/ul>\n<p>It is not the same compound as <strong>dimethyl phthalate<\/strong> despite the similarity of the names. The two compounds have different substitution patterns on the aromatic ring.<\/p>\n<h2>4. Industrial and Materials-Science Applications<\/h2>\n<p>Dimethyl terephthalate is an important chemical intermediate used in polyester chemistry <a href=\"https:\/\/bestresearchchemical.com\/\" target=\"_blank\" rel=\"noopener\">source<\/a>.<\/p>\n<p>Documented applications include research and industrial processes involving:<\/p>\n<ul>\n<li>Polyester resin production<\/li>\n<li>Polyester fibres<\/li>\n<li>Polyester films<\/li>\n<li>Engineering polymers<\/li>\n<li>Production of polyethylene terephthalate (PET)<\/li>\n<li>Preparation of other ester-based materials<\/li>\n<\/ul>\n<p><a href=\"https:\/\/researchchemicalsolutions.com\/\" target=\"_blank\" rel=\"noopener\">Research Chemical Solutions<\/a> identifies dimethyl terephthalate as an industrial intermediate for polyester and related materials.<\/p>\n<h2>5. Chemical Research Applications<\/h2>\n<p>Potential research applications include:<\/p>\n<h3>Polymer Chemistry<\/h3>\n<p>Dimethyl terephthalate can serve as an aromatic diester building block in investigations of polyester formation and polymer properties.<\/p>\n<h3>Materials Research<\/h3>\n<p>Researchers can investigate how terephthalate-derived structures influence:<\/p>\n<ul>\n<li>Polymer morphology<\/li>\n<li>Thermal properties<\/li>\n<li>Mechanical characteristics<\/li>\n<li>Crystallinity<\/li>\n<li>Chemical resistance<\/li>\n<\/ul>\n<h3>Analytical Chemistry<\/h3>\n<p>Dimethyl terephthalate can also be used as a reference compound in analytical investigations involving aromatic esters and polyester-related materials.<\/p>\n<h3>Chemical Transformation Studies<\/h3>\n<p>Its ester functionality makes it relevant to research involving ester chemistry, hydrolysis, transesterification, and related transformations.<\/p>\n<h2>6. Analytical Characterization<\/h2>\n<p>Several complementary analytical techniques can be used to characterize dimethyl terephthalate.<\/p>\n<p><strong>HPLC \/ UHPLC<\/strong><br \/>\nUseful for chromatographic separation and quantitative analysis.<\/p>\n<p><strong>GC-MS<\/strong><br \/>\nCan provide chromatographic separation together with mass-spectral identification when the analytical conditions are appropriate.<\/p>\n<p><strong>NMR spectroscopy<\/strong><br \/>\n\u00b9H and \u00b9\u00b3C NMR can provide information about the aromatic and ester environments and support structural confirmation.<\/p>\n<p><strong>FTIR spectroscopy<\/strong><br \/>\nCan provide characteristic information about ester carbonyl and other functional groups.<\/p>\n<p><strong>Melting-point analysis<\/strong><br \/>\nCan provide a useful physical-property measurement and may contribute to assessment of material consistency.<\/p>\n<p>Commercial analytical-grade material is available with documented infrared spectra and assay specifications, illustrating the types of characterization commonly associated with this compound.<\/p>\n<h2>7. Quality and Purity Documentation<\/h2>\n<p>For laboratory research, identity and purity should be established using appropriate analytical documentation.<\/p>\n<p>Relevant documentation can include:<\/p>\n<ul>\n<li>Certificat de analiz\u0103 (COA)<\/li>\n<li>Batch or lot number<\/li>\n<li>HPLC or GC assay<\/li>\n<li>GC-MS or LC-MS data<\/li>\n<li>FTIR spectrum<\/li>\n<li>NMR spectrum<\/li>\n<li>Melting-point data<\/li>\n<li>Relevant impurity profile<\/li>\n<\/ul>\n<p>A stated purity value should be treated as <strong>grade- or batch-specific<\/strong> unless supported by the corresponding analytical documentation.<\/p>\n<h2>8. Laboratory Handling<\/h2>\n<p>Dimethyl terephthalate should be handled according to the applicable Safety Data Sheet and institutional chemical-hygiene procedures.<\/p>\n<p>General laboratory practices include:<\/p>\n<ul>\n<li>Appropriate laboratory PPE<\/li>\n<li>Avoidance of unnecessary exposure to chemical dust<\/li>\n<li>Appropriate ventilation<\/li>\n<li>Proper chemical labeling<\/li>\n<li>Controlled storage<\/li>\n<li>Suitable chemical-waste procedures<\/li>\n<\/ul>\n<p>The exact precautions should be determined from the SDS for the specific grade and supplier.<\/p>\n<h2>9. Storage Considerations<\/h2>\n<p>Storage should follow the manufacturer&#8217;s or laboratory&#8217;s applicable chemical-storage requirements.<\/p>\n<p>Relevant considerations include:<\/p>\n<ul>\n<li>Keeping the material in a properly closed container<\/li>\n<li>Protecting it from contamination<\/li>\n<li>Maintaining a dry storage environment<\/li>\n<li>Avoiding unnecessary heat exposure<\/li>\n<li>Following the supplier&#8217;s specified temperature requirements<\/li>\n<\/ul>\n<p>Specific shelf-life claims should be supported by stability information for the relevant grade and packaging.<\/p>\n<h2>10. Environmental and Materials Research<\/h2>\n<p>Dimethyl terephthalate is relevant to research concerning the production and lifecycle of polyester materials.<\/p>\n<p>Research areas may include:<\/p>\n<ul>\n<li>Polyester synthesis<\/li>\n<li>Polymer degradation<\/li>\n<li>Chemical recycling<\/li>\n<li>Monomer recovery<\/li>\n<li>Depolymerization studies<\/li>\n<li>Polymer-to-monomer conversion<\/li>\n<li>Sustainable materials development<\/li>\n<\/ul>\n<p>Its relationship to PET chemistry makes it particularly relevant to research into alternative polyester manufacturing and recycling pathways.<\/p>\n<h2>11. Regulatory and Compliance Information<\/h2>\n<p>Dimethyl terephthalate has established industrial and laboratory uses, but applicable workplace, environmental, transportation, and chemical-management requirements can vary by jurisdiction.<\/p>\n<p>Researchers should consult the current SDS, applicable institutional requirements, and relevant local regulations for the specific material and intended laboratory application.<\/p>\n<h2>12. FAQ<\/h2>\n<h3>What is dimethyl terephthalate?<\/h3>\n<p>Dimethyl terephthalate is the dimethyl ester of terephthalic acid and has the molecular formula C\u2081\u2080H\u2081\u2080O\u2084.<\/p>\n<h3>What is the CAS number?<\/h3>\n<p>The CAS Registry Number is <strong>120-61-6<\/strong>.<\/p>\n<h3>What is the molecular weight?<\/h3>\n<p>The molecular weight is approximately <strong>194.18 g\/mol<\/strong>.<\/p>\n<h3>Is dimethyl terephthalate the same as dimethyl phthalate?<\/h3>\n<p>No. Dimethyl terephthalate has its two ester groups in the <strong>para (1,4)<\/strong> arrangement, whereas dimethyl phthalate has a different substitution pattern.<\/p>\n<h3>What is dimethyl terephthalate used for?<\/h3>\n<p>It is primarily an industrial intermediate associated with polyester resins, fibres, films, engineering polymers, and PET-related chemistry.<\/p>\n<h3>Which techniques can be used to characterize it?<\/h3>\n<p>HPLC, GC-MS, NMR, FTIR, and physical-property measurements such as melting-point analysis can be used depending on the analytical objective.<\/p>\n<p>&nbsp;<\/p>\n<h2>14. Research-Only Scientific Disclaimer<\/h2>\n<p>This document is provided for <strong>scientific, educational, analytical, and materials-research reference purposes<\/strong>. It is not a substitute for the applicable SDS, laboratory procedures, regulatory requirements, or professional chemical-safety assessment.<\/p>","protected":false},"excerpt":{"rendered":"<h2>Identitate chimic\u0103<\/h2>\n<p><strong>Common name:<\/strong> Dimethyl terephthalate (DMT)<br \/>\n<strong>Chemical name:<\/strong> Dimethyl terephthalate<br \/>\n<strong>Denumirea IUPAC:<\/strong> Dimethyl benzene-1,4-dicarboxylate<\/p>\n<p><strong>Sinonime:<\/strong><\/p>\n<ul>\n<li>1,4-Benzenedicarboxylic acid, dimethyl ester<\/li>\n<li>Dimethyl p-phthalate<\/li>\n<li>Dimethyl 4-phthalate<\/li>\n<li>Terephthalic acid dimethyl ester<\/li>\n<li>Dimethyl 1,4-benzenedicarboxylate<\/li>\n<\/ul>\n<p><strong>CAS Registry Number:<\/strong> 120-61-6<br \/>\n<strong>PubChem CID:<\/strong> 8441<br \/>\n<strong>Formula molecular\u0103:<\/strong> C\u2081\u2080H\u2081\u2080O\u2084<br \/>\n<strong>Molecular weight:<\/strong> 194.18 g\/mol<br \/>\n<strong>InChIKey:<\/strong> WOZVHXUHUFLZGK-UHFFFAOYSA-N<br \/>\n<strong>SMILES:<\/strong> COC(=O)C1=CC=C(C=C1)C(=O)OC<\/p>\n<p>&nbsp;<\/p>","protected":false},"featured_media":30842,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[82],"product_cat":[1218],"product_tag":[1225,1222,1221,1224,1219,1220,1228,1226,1223,1227],"class_list":["post-30835","product","type-product","status-publish","has-post-thumbnail","product_brand-research-chemical","product_cat-aromatic-esters","product_tag-analytical-chemistry","product_tag-aromatic-esters","product_tag-cas-120-61-6","product_tag-chemical-reference","product_tag-dimethyl-terephthalate","product_tag-dmt","product_tag-laboratory-chemicals","product_tag-materials-chemistry","product_tag-organic-chemistry","product_tag-polymer-research","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/product\/30835","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/comments?post=30835"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/media\/30842"}],"wp:attachment":[{"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/media?parent=30835"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/product_brand?post=30835"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/product_cat?post=30835"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/purematrixchem.com\/ro\/wp-json\/wp\/v2\/product_tag?post=30835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}