1451-95-2

Basic information

• Product Name: Thiophene-2,3-dicarboxylicacid
• Synonyms: thiophene-2,3-dicarboxylic acid 97%
• CAS NO: 1451-95-2
• Molecular Formula: C₆H₄O₄S
• Molecular Weight: 172.16
• Mol File: 1451-95-2.mol
• Article Data: 24

Chemical Properties

• Boiling Point: 405.9 °C at 760 mmHg
• Flash Point: 199.3 °C
• Appearance: /
• Density: 1.655 g/cm³
• Vapor Pressure: 0.206mmHg at 25°C
• Refractive Index: 1.666
• Storage Temp.: 2-8°C
• CAS DataBase Reference: Thiophene-2,3-dicarboxylicacid(CAS DataBase Reference)
• NIST Chemistry Reference: Thiophene-2,3-dicarboxylicacid(1451-95-2)
• EPA Substance Registry System: Thiophene-2,3-dicarboxylicacid(1451-95-2)

Safety Data

• Hazardous Substances Data: 1451-95-2(Hazardous Substances Data)

Usage

General Description

Thiophene-2,3-dicarboxylic acid is a chemical compound with the molecular formula C6H4O4S. It is a heterocyclic compound containing a thiophene ring and two carboxylic acid groups. The compound is commonly used as a building block in the synthesis of various pharmaceuticals, agrochemicals, and materials. It is a key intermediate in the production of thiophene-based polymers, which have applications in organic electronics, semiconductors, and optoelectronic devices. Thiophene-2,3-dicarboxylic acid is also used in the manufacture of dyes, pigments, and as a reagent in organic synthesis. The compound has potential industrial uses in the production of specialty chemicals and materials due to its unique structural and chemical properties.

InChI:InChI=1/C4H2N2OS/c7-3-6-4-5-1-2-8-4/h1-2H

Upstream product

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• 58231-00-8 3-cyanothiophene-2-carboxylic acid 
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• 6628-79-1 3-methyllevulinic acid 
• 97759-72-3 N-(2-hydroxy-1,1-dimethylethyl)thiophene-2-carboxamide 
• 62521-42-0 4,4-dimethyl-2-(2-thienyl)oxazoline 

Relevant articles and documents

Synthesis and cytotoxicity of Methyl-4,8-dihydrobenzo[1,2-b:5,4-b']dithiophene-4,8-dione derivatives

2- and 3-Methyl-4,8-dihydrobenzo[1,2-b:5,4-b']dithiophene-4,8-dione and related derivatives were synthesized and evaluated in vitro by NCI against eight cancer types. Compounds 12-15 showed significant activity against melanoma, NCI-H23 non-small cell lung cancer, and MDA-MB-435 and MDA-N breast cancer cell lines; 2-hydroxymethyl-4,8-dihydrobenzo[1,2-b:5,4-b']dithiophene-4,8-dione (13) showed the highest activity against melanoma (mean log GI50=-7.74) and the highest overall potency (mean log GI50=-6.99). Copyright (C) 1999 Published by Elsevier Science Ltd.

Facile access to novel 1,4-dihydroxynaphthalene-2,3-dicarboximides and heterofused analogs

A variety of novel 1,4-dihydroxynaphthalene-2,3-dicarboximides and heterofused analogs were prepared by a convenient one-pot base-catalyzed condensation of N-substituted succinimides with aromatic ortho diester derivatives.

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BENZOBIS-(THIADIAZOLE) DERIVATIVE, INK CONTAINING THE SAME, AND ORGANIC ELECTRONICS DEVICE USING THE SAME

The object of the present invention is to provide a benzobis-(thiadiazole) derivative which has excellent electron mobility (field-effect mobility) and excellent stability in the atmosphere. The present invention relates to a benzobis-(thiadiazole) derivative which has a cyclic imide structure with condensed aromatic ring in its molecule shown in the formula (1) or (2): (In the formula, R, A and Z represent specific groups.)

ORGANIC SEMICONDUCTOR MATERIAL

The present invention relates to a novel compounds useful as organic semiconductor material, and semiconductor devices containing said organic semiconductor material.