852054-42-3

Basic information

• Product Name: 7-BROMO-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE-5-CARBOXALDEHYDE 97
• Synonyms: 7-BroMo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxaldehydeMol;7-Bromo-2,3-dihydro-thieno[3,4-b]-1,4-dioxin-5-carboxaldehyde;7-Bromo-2,3-dihydro-5-formylthieno[3,4-b][1,4]dioxine;Thieno[3,4-b]-1,4-dioxin-5-carboxaldehyde,7-broMo-2,3-dihydro-;7-bromo-2,3-dihydro-Thieno[3,4-b]-1,4-dioxin-5-carbaldehyde;7-BROMO-2,3-DIHYDROT;7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxaldehyde;7-BROMO-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE-5-CARBALDEHYDE
• CAS NO: 852054-42-3
• Molecular Formula: C₇H₅BrO₃S
• Molecular Weight: 249.0818
• Mol File: 852054-42-3.mol
• Article Data: 11

Chemical Properties

• Melting Point: 141-142
• Boiling Point: 351.5ºC at 760 mmHg
• Flash Point: 166.4ºC
• Appearance: /
• Density: 1.835±0.06 g/cm3 (20 ºC 760 Torr)
• Vapor Pressure: 4.09E-05mmHg at 25°C
• Refractive Index: 1.656
• Storage Temp.: under inert gas (nitrogen or Argon) at 2–8 °C
• CAS DataBase Reference: 7-BROMO-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE-5-CARBOXALDEHYDE 97(CAS DataBase Reference)
• NIST Chemistry Reference: 7-BROMO-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE-5-CARBOXALDEHYDE 97(852054-42-3)
• EPA Substance Registry System: 7-BROMO-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE-5-CARBOXALDEHYDE 97(852054-42-3)

Safety Data

• Hazardous Substances Data: 852054-42-3(Hazardous Substances Data)

Usage

Chemical Properties

powder

InChI:InChI=1/C7H5BrO3S/c8-7-6-5(4(3-9)12-7)10-1-2-11-6/h3H,1-2H2

Upstream product

• 126213-50-1 3,4-(ethylenedioxy)thiophene 
• 68-12-2 N,N-dimethyl-formamide 
• 174508-31-7 5,7-dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine 
• 302554-82-1 5-bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine 
• 204905-77-1 3,4-ethylenedioxythiophene-2-carboxaldehyde 

Downstream Products

• 1190283-59-0 7-((4-diphenylamino)phenyl)-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carbaldehyde 
• 1031685-75-2 7-(3,4-dimethoxyphenyl)-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxaldehyde 
• 925674-70-0 2,3-dihydro-7-(4-methoxyphenyl)thieno[3,4-b][1,4]dioxine-5-carbaldehyde 
• 1031685-80-9 5-(4-methoxyphenyl)-3,4-ethylenedioxythenyl alcohol 
• 925674-54-0 5?(4?methoxyphenyl)?2,3?dihydrothieno[3,4?b][1,4]dioxine 

Relevant articles and documents

A new series of EDOT based co-sensitizers for enhanced efficiency of cocktail DSSC: A comparative study of two different anchoring groups

Herein, we report the design and synthesis strategy of a new class of five EDOT based co-sensitizers (CSGR1-5) by introducing different donors (2,3,4-trimethoxypheny, 2,4-dibutoxyphenyl, and 2,4-difluorophenyl) and anchoring groups (rhodamine-3-acetic acid and cyanoacetic acid) systematically. The synthesized metal-free organic co-sensitizers were employed for cocktail dye-sensitized solar cells along with N749 (black dye). The DSSC devices with a mixture of co-sensitizers (CSGR1-5) and N749 have shown a 7.95%, 8.40%, 7.81%, 6.56% and 6.99% power conversion efficiency (PCE) respectively, which was more than that of single N749 dye PCE (6.18%). Enhanced efficiency could be ascribed to the increased short circuit current (Jsc) and open circuit voltage (Voc). The increased Jsc was achieved due to enhanced light harvesting nature of N749 device upon co-sensitization with CSGR dyes and feasible energy levels of both the dyes. The Voc was improved due to better surface coverage which helps in decreasing the rate of recombination. The detailed optical and electrochemical properties were investigated and complimented with theoretical studies (DFT).

Divergent Synthesis and Evaluation of the in vitro Cytotoxicity Profiles of 3,4-Ethylenedioxythiophenyl-2-propen-1-one Analogues

A new series of 3,4-ethylenedioxythiophene (EDOT)-appended propenones were prepared by condensation reaction and their in vitro cytotoxicity effects were evaluated against five human cancer cell lines. Preliminary structure–activity relationships of EDOT-

Synthesis of π-conjugated 2,2:6′,2″-terpyridine-substituted oligomers based on 3,4-ethylenedioxythiophene

Dissymmetric π-conjugated monomers and oligomers incorporating 3,4-ethylenedioxythiophene (EDOT) units and bearing terpyridine end groups were synthesized in good yields through Vilsmeyer-Haak formylation followed by a reaction with 2-acetylpyridine in ba