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

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

Uses

Used in Chemical Industry:
3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID is used as a key intermediate in the synthesis of organic compounds and materials for various applications. Its chemical structure and properties contribute to the development of dyes, pharmaceuticals, and polymers, enhancing their performance and functionality.
Used in Dye Synthesis:
In the dye industry, 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID is used as a building block for the creation of novel dyes with improved color properties and stability. Its incorporation into dye molecules allows for the development of dyes with enhanced lightfastness, solubility, and resistance to environmental factors.
Used in Pharmaceutical Development:
3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID serves as a valuable component in the synthesis of pharmaceutical compounds. Its unique chemical structure can be utilized to design and develop new drugs with improved therapeutic properties, such as increased potency, selectivity, and bioavailability.
Used in Polymer Synthesis:
In the polymer industry, 3,4-DIMETHYLTHIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID is used as a monomer or a building block for the development of new polymer materials. Its incorporation into polymer chains can lead to the creation of polymers with enhanced mechanical, thermal, and chemical properties, making them suitable for various applications, such as electronics, coatings, and packaging materials.

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

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

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.

Design, synthesis and fluorescence behavior of novel chemosensor with a thieno[2,3-b] thiophene fluorophore

A novel fluorescent chemosensor, a thieno[2,3-b]thiophene derivative carrying two oxazoline groups (DTTO) was designed and synthesized, which was discovered to exhibit good selectivity to dichromate anions (Cr2O72-). We also found that if the oxazoline group was replaced with a chiral one, for example, (S)-DTTO acted as a chiral fluorescent chemosensor, which exhibited a distinguishing fluorescent response to the enantiomers of mandelic acid.

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

Synthesis, complexation, and fluorescence behavior of 3,4-dimethylthieno[2, 3-b]thiophene carrying two monoaza-15-crown-5 ether groups

A novel fluoroionophore 1 based on 3,4-dimethylthieno[2,3-b]thiophene bearing two monoaza-15-crown-5 ethers at 3- and 4-positions was prepared. UV-vis and fluorescence responses of compound 1 upon the addition of alkali and alkaline earth metal cations were evaluated in acetonitrile solution. Receptor 1 showed unique response for Ba2+ due to the formation of an intramolecular sandwich complex.

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.