175202-55-8

Basic information

• Product Name: 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID
• Synonyms: 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID;BUTTPARK 37\11-69;3,4-Dimethylthieno(2,3-b)thiophene-2,5-
• CAS NO: 175202-55-8
• Molecular Formula: C10H8O4S2
• Molecular Weight: 256.3
• EINECS: 200-258-5
• Mol File: 175202-55-8.mol
• Article Data: 5

Chemical Properties

• Melting Point: >360°C
• Boiling Point: 538 °C at 760 mmHg
• Flash Point: 279.2 °C
• Appearance: /
• Density: 1.600
• Vapor Pressure: 2.08E-12mmHg at 25°C
• Refractive Index: 1.736
• Storage Temp.: Keep in dark place,Sealed in dry,Room Temperature
• PKA: 2.70±0.30(Predicted)
• CAS DataBase Reference: 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID(175202-55-8)
• EPA Substance Registry System: 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID(175202-55-8)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• Hazardous Substances Data: 175202-55-8(Hazardous Substances Data)

Usage

General Description

3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID is a chemical compound that contains a thiophene ring with two carboxylic acid groups attached. It has a molecular formula of C11H8O4S2 and a molecular weight of 276.31 g/mol. 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID is often used in the synthesis of organic compounds and materials, such as dyes, pharmaceuticals, and polymers. Its chemical structure and properties make it useful for various applications in the chemical industry.

InChI:InChI=1/C10H8O4S2/c1-3-5-4(2)7(9(13)14)16-10(5)15-6(3)8(11)12/h1-2H3,(H,11,12)(H,13,14)

Upstream product

• 152487-69-9 diethyl 3,4-dimethylthieno<2,3-b>thiophen-2,5-dicarboxylate 
• 123-54-6 acetylacetone 

Downstream Products

• 175202-58-1 3,4-dimethyl thieno[2,3-b]thiophene 

Relevant articles and documents

Introduction of Molecular Building Blocks to Improve the Stability of Metal-Organic Frameworks for Efficient Mercury Removal

With expanding human needs, many heavy metals were mined, smelted, processed, and manufactured for commercialization, which caused serious environmental pollutions. Currently, many adsorption materials are applied in the field of adsorption of heavy metals. Among them, the principle of many mercury adsorbents is based on the interaction between mercury and sulfur. Here, a S-containing metal-organic framework NENU-400 was synthesized for effective mercury extraction. Unfortunately, the skeleton of NENU-400 collapsed easily when exposed to the mercury liquid solution. To improve the stability, a synthetic strategy installing molecular building blocks (MBBs) into the channels was used. Modified by the MBBs, a more stable nanoporous framework was synthesized, which not only exhibits a high capacity of saturation mercury uptake but also shows high selectivity and efficient recyclability.

Phenyl Groups Result in the Highest Benzene Storage and Most Efficient Desulfurization in a Series of Isostructural Metal-Organic Frameworks

A series of isoreticular metal-organic frameworks (MOFs; NENU-511-NENU-514), which all have high surface areas and strong adsorption capacities, have been successfully constructed by using mixed ligands. NENU-513 has the highest benzene capacity of 1687 m

Efficient one pot preparation of variously substituted thieno[2,3-b]thiophene

An efficient one pot access to variously substituted thieno[2,3-b]thiophene is described. The title compounds were obtained from 1,3-dicarbonyl or equivalent compounds, carbon disulfide and halomethyl derivatives in good to high yields and fully characterized.