201004-08-2

Basic information

• Product Name: Thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester
• Synonyms: Thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester;ethyl thieno[3,2-b]thiophene-5-carboxylate
• CAS NO: 201004-08-2
• Molecular Formula: C₉H₈O₂S₂
• Molecular Weight: 212.28862
• Mol File: 201004-08-2.mol
• Article Data: 11

Chemical Properties

• Boiling Point: 318.8±22.0 °C(Predicted)
• Appearance: /
• Density: 1.352±0.06 g/cm3(Predicted)
• Storage Temp.: 2-8°C(protect from light)
• CAS DataBase Reference: Thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester(201004-08-2)
• EPA Substance Registry System: Thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester(201004-08-2)

Safety Data

• Hazardous Substances Data: 201004-08-2(Hazardous Substances Data)

Usage

General Description

Thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester is an organic compound with the molecular formula C11H8O2S2. It is a derivative of thieno[3,2-b]thiophene, a heterocyclic compound containing two fused thiophene rings. The ethyl ester group in the compound indicates the presence of an ester functional group, which is commonly used in organic synthesis and as a solvent in various applications. Thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester may have potential applications in the field of organic electronics, such as in the development of organic semiconductors for use in electronic devices. Its chemical structure and properties make it of interest for researchers in the field of organic chemistry and materials science.

Upstream product

• 930-96-1 3-bromo-2-thiophenecarboxaldehyde 
• 623-51-8 ethyl 2-sulfanylacetate 

Downstream Products

• 124638-53-5 tetrabromo-thieno[3,2-b]thiophene 
• 469912-82-1 trimethyl[5-(trimethylstannyl)thieno[3,2-b]thiophen-2-yl]stannane 
• 1620070-13-4 C₃₁H₃₂N₄O₅S₂ 
• 1620074-61-4 C₂₆H₂₃N₃O₄S₂ 
• 1185221-51-5 2,5-di(5-phenylthiophen-2-yl)thieno[3,2-b]thiophene 
• 21210-90-2 2,5-di-thiophen-2-yl-thieno[3,2-b]thiophene 
• 1422279-59-1 C₂₈H₁₄F₆S₄ 
• 1185221-50-4 2,5-bis(5-(4-dodecylphenyl)thiophen-2-yl)thieno[3,2-b]thiophene 
• 1219808-50-0 C₂₂H₁₂S₄ 
• 1356621-59-4 C₂₂H₂F₁₀S₄ 
• 1219036-84-6 (2Z)-1-(9-ethyl-9H-carbazol-2-yl)-3-hydroxy-3-thieno[3,2-b]thiophen-2-ylprop-2-en-1-one 
• 201004-10-6 2,5-bis(methylthio)thieno[3,2-b]thiophene 
• 1723-27-9 thieno[3,2-b]thiophene-2-carboxylic acid 

Relevant articles and documents

Enhanced electrochromic performances of Polythieno[3,2-b]thiophene with multicolor conversion via embedding EDOT segment

A heterocyclic oligomer, thieno[3,2-b]thiophene (TT) end-capped famous 3,4-ethylenedioxythiophene (EDOT) unit and their electrosynthesized polymer P(TT-EDOT-TT) have been facilely achieved. To in-depth understand the effects of structural modification on physico-chemical properties and electrochromic performances of monomers and/or polymers, the absorption spectroscopy, electrochemistry, micromorphology, and spectroelectrochemistry were systematically studied. In contrast to TT and EDOT, TT-EDOT-TT possessed extended π-conjugation and narrowed band gap in molecular level. Through carefully comparison with PTT, it has been found that the electrochromic performances of P(TT-EDOT-TT) film exhibited much higher optical contrast (69%, while 3% for PTT in the near-infrared region) and superior coloring efficiency (255.3 cm2 C?1, while 36.8 cm2 C?1 for PTT), and switching times (within 1 s, while more than 9 s for PTT). Notably, P(TT-EDOT-TT) film can achieve the mutual conversion between RGB primary colors (red–green–blue) under variable voltages, which hold quite promising for display applications.

Correlation of structure and photovoltaic performance of benzo[1,2-b:4,5-b′]dithiophene copolymers alternating with different acceptors

Four π-conjugated benzo[1,2-b:4,5-b′]dithiophene (BDT) based polymers were synthesized for application in polymer solar cells. These polymers possessed desirable HOMO/LUMO levels for polymer photovoltaic applications. PBDTT-TTz and PBDTT-DTBT displayed strong absorption in the range of 300-650 nm, while PBDTT-DPP and PBDTT-TTDPP showed a further 100 nm extended absorption band. The lowest unoccupied molecular orbital energy levels of polymers were tuned effectively from -3.34 eV to -3.81 eV by fusing with different accepting units. A maximum power conversion efficiency of 2.60% was obtained from photovoltaic cells with a PBDTT-TTz:PC61BM (1:2, w/w) blend film as the active layer, with a short circuit current density of 8.37 mA cm-2, an open circuit voltage of 0.70 V, and a fill factor of 44.3%. This journal is

LYSOPHOSPHATIDIC ACID RECEPTOR ANTAGONISTS

Compounds, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds to treat, prevent or diagnose diseases, disorders, or conditions associated with one or more of the lysophosphatidic acid receptors are provided.