58138-38-8

Basic information

• Product Name: 1,2-BENZENEDICARBOXYLIC ACID,4-CHLORO-,1,2-DIMETHYL ESTER
• Synonyms: 1,2-BENZENEDICARBOXYLIC ACID,4-CHLORO-,1,2-DIMETHYL ESTER;DIMETHYL 4-CHLOROPHTHALATE
• CAS NO: 58138-38-8
• Molecular Formula: C₁₀H₉ClO₄
• Molecular Weight: 228.63
• Mol File: 58138-38-8.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 123 °C(Press: 3 Torr)
• Appearance: /
• Density: 1.290±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 1,2-BENZENEDICARBOXYLIC ACID,4-CHLORO-,1,2-DIMETHYL ESTER(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-BENZENEDICARBOXYLIC ACID,4-CHLORO-,1,2-DIMETHYL ESTER(58138-38-8)
• EPA Substance Registry System: 1,2-BENZENEDICARBOXYLIC ACID,4-CHLORO-,1,2-DIMETHYL ESTER(58138-38-8)

Safety Data

• Hazardous Substances Data: 58138-38-8(Hazardous Substances Data)

Usage

General Description

1,2-Benzenedicarboxylic acid, 4-chloro-, 1,2-dimethyl ester is a chemical compound that is commonly used as a plasticizer in various industrial applications. It is also known by its trade name, dimethyl terephthalate (DMT), and is considered to be an important intermediate in the production of polyethylene terephthalate (PET) resin, which is widely used in the manufacturing of plastic bottles and containers. 1,2-BENZENEDICARBOXYLIC ACID,4-CHLORO-,1,2-DIMETHYL ESTER is a colorless to pale yellow liquid with a faint aromatic odor, and it is flammable and can react violently with strong oxidizing agents. It is important to handle and store this chemical with caution to prevent any potential hazards or risks to human health and the environment.

Upstream product

• 88-99-3 benzene-1,2-dicarboxylic acid 
• 67-56-1 methanol 
• 74-88-4 methyl iodide 
• 124-41-4 sodium methylate 
• 7647-01-0 hydrogenchloride 
• 118-45-6 4-chlorophthalic anhydride 
• 146271-52-5 2-chloro-1-trimethylsilyloxy-1,3-butadiene 
• 762-42-5 dimethyl acetylenedicarboxylate 
• 89-20-3 4-chlorophthalic acid 

Downstream Products

• 36978-37-7 3,3',4,4'-biphenyltetracarboxylic acid tetramethyl ester 
• 36966-22-0 1,1'-biphenyl-2,2',3,3'-tetracarboxylic acid 
• 606-23-5 1H-indene-1,3(2H)-dione 
• 856806-80-9 5-chloro-2-(methoxycarbonyl)benzoic acid 
• 58138-39-9 5-chloro-2-cyano indan-1,3-dione 
• 110706-49-5 4-chloro-2-(hydroxymethyl)benzyl alcohol 

Relevant articles and documents

Preparation method for biphenyltetracarboxylic dianhydride mixture

The invention relates to a preparation method for a biphenyltetracarboxylic dianhydride mixture. The preparation method comprises the following steps: with phthalic acid as a starting raw material, carrying out an electrophilic substitution reaction so as to produce a phthalic acid derivative; then subjecting the derivative to esterification so as to produce phthalate; further catalyzing phthalate and carrying out a coupling reaction so as to produce a biphenyl tetraformate mixture; and finally, successively carrying out saponification and acidification so as to produce the product biphenyltetracarboxylic dianhydride mixture. The method provided by the invention uses cheap and easily phthalic acid as the starting raw material and is a novel low-cost easily-operatable environment-friendly production method for biphenyltetracarboxylic dianhydride; moreover, isomeric compounds of all the biphenyltetracarboxylic dianhydride are synthesized at one time in the invention, so efficiency is improved and the cost is reduced.

The Diels-Alder approach to musk odor type arenes

The readily accessible 2-halogeno-1-trimethylsilyloxy-1,3-butadienes react smoothly with dimethyl acetylenedicarboxylate to afford 4-halophthalic esters. One of these cycloadducts was subsequently converted into heterocyclic analogues of phantolide like musk fragrances.