1,4-Benzenedicarboxylic Acid Dimethyl Ester

• CAT Number: R050333
• CAS Number: 120-61-6
• Molecular Formula: C6H4(COOCH3)2
• Molecular Weight: 194.19
• Purity: ≥95%
• Synonyms: Terephthalic Acid Dimethyl Ester; DMT; Dimethyl 1,4-Benzenedicarboxylate; Dimethyl p-Benzenedicarboxylate; Dimethyl p-Phthalate; Dimethyl Terephthalate; Methyl 4-(Carbomethoxy)benzoate; Methyl p-(Methoxycarbonyl)benzoate; NSC 3503;
• Storage: Store at -20°C
• Related CAS: 66553-02-4 792-74-5 1679-64-7 3609-53-8
• IUPAC Name: dimethyl benzene-1,4-dicarboxylate
• InChI: InChI=1S/C10H10O4/c1-13-9(11)7-3-5-8(6-4-7)10(12)14-2/h3-6H,1-2H3
• InChIKey: WOZVHXUHUFLZGK-UHFFFAOYSA-N
• SMILES: COC(=O)C1=CC=C(C=C1)C(=O)OC

1,4-Benzenedicarboxylic acid dimethyl ester（Cat No.:R050333）, also known as dimethyl terephthalate (DMT), is an organic compound with the formula C₆H₄(CO₂CH₃)₂. It features a benzene ring substituted with two methyl ester groups at the para positions. DMT is a key intermediate in the production of polyethylene terephthalate (PET), widely used in synthetic fibers, plastic bottles, and films. It is a white crystalline solid with good thermal stability and solubility in organic solvents. Its reactivity makes it suitable for transesterification and polymerization reactions, playing a crucial role in the polyester manufacturing industry.