Dimethyl thiophene-2,3-dicarboxylic acid

Dimethyl thiophene-2,3-dicarboxylic acid - Names and Identifiers

Name	Dimethyl thiophene-2,3-dicarboxylate
Synonyms	Dimethyl thiophene-2,3-dicarboxylate Dimethyl thiophene-2,3-dicarboxylic acid 2,3-diMethyl thiophene-2,3-dicarboxylate 2,3-Thiophenedicarboxylic acid, 2,3-dimethyl ester
CAS	14300-68-6
InChI	InChI=1/C8H8O4S/c1-11-7(9)5-3-4-13-6(5)8(10)12-2/h3-4H,1-2H3

Dimethyl thiophene-2,3-dicarboxylic acid - Physico-chemical Properties

Molecular Formula	C8H8O4S
Molar Mass	200.21
Density	1.294±0.06 g/cm3(Predicted)
Melting Point	32-33 °C
Boling Point	252.6±20.0 °C(Predicted)
Flash Point	106.6°C
Vapor Presure	0.0191mmHg at 25°C
Storage Condition	2-8°C
Refractive Index	1.535

Dimethyl thiophene-2,3-dicarboxylic acid - Introduction

Methyl thiophene-2, 3-dicarboxylate (also known as 2,3-dimethoxythiophene) is an organic compound with the chemical formula C6H6O2S. The following is a detailed description of the properties, uses, preparation and safety information of the compound:

Nature:
Methyl thiophene-2, 3-dicarboxylate is a colorless to pale yellow liquid with a peculiar odor. It dissolves in organic solvents such as diethyl ether, acetone and dimethyl sulfoxide. It has a melting point of -32°C, a boiling point of 243°C and a density of 1.28g/cm³. The compound is sensitive to light and should be stored in a dry place protected from light.

Use:
Methyl thiophene-2, 3-dicarboxylate is widely used in the field of organic synthesis. It is an important intermediate compound, which can be used to prepare target compounds with pharmaceutical activity. In addition, it can also be used as a device material for organic light emitting diodes (OLEDs).

Preparation Method:
Methyl thiophene-2, 3-dicarboxylate can be prepared by condensation reaction of thiophene-2, 3-dicarboxylic acid with methanol. The specific step is to dissolve thiophene-2, 3-dicarboxylic acid in an organic solvent, add a basic catalyst (such as potassium carbonate or sodium carbonate), and then add an appropriate amount of methanol to perform a condensation reaction. Finally, thiophene-2, 3-dicarboxylic acid methyl ester can be obtained by distillation extraction purification.

Safety Information:
Methyl thiophene-2, 3-dicarboxylate is irritating to the skin and eyes. Wear appropriate protective equipment such as gloves, goggles and masks during use or handling. Avoid breathing gas, smoke or mist. When stored, should be away from fire and oxidant, and stored in a well-ventilated place. In the event of a leak, prompt removal measures shall be taken to prevent it from entering the water source or drainage system. If exposed or inhaled, seek medical attention immediately. For detailed safety information, please refer to the safety data sheet (SDS) of the relevant chemical.

Last Update：2024-04-09 21:00:56