74228-25-4

Basic information

• Product Name: 3-DI CYANO METHYLIDINE-2,3-DIHYDROXYTHIOPHENE-3-YIDINO
• Synonyms: 3-DI CYANO METHYLIDINE-2,3-DIHYDROXYTHIOPHENE-3-YIDINO;3-(Dicyanomethylene)-2,3-dihydrobenzothiophene-1,1-dioxide;3-(dicyanomethylidene)-2,3-dihydrobenzothiophene-1,1-dioxide;2-(1,1-Dioxidobenzo[b]thiophen-3(2H)-ylidene)malononitrile;2-(1,1-dioxido-1-benzothien-3(2H)-ylidene)malononitrile;ICSO
• CAS NO: 74228-25-4
• Molecular Formula: C₁₁H₆N₂O₂S
• Molecular Weight: 230.24254
• Mol File: 74228-25-4.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 502.1±50.0 °C(Predicted)
• Appearance: /
• Density: 1.497±0.06 g/cm3(Predicted)
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 3-DI CYANO METHYLIDINE-2,3-DIHYDROXYTHIOPHENE-3-YIDINO(CAS DataBase Reference)
• NIST Chemistry Reference: 3-DI CYANO METHYLIDINE-2,3-DIHYDROXYTHIOPHENE-3-YIDINO(74228-25-4)
• EPA Substance Registry System: 3-DI CYANO METHYLIDINE-2,3-DIHYDROXYTHIOPHENE-3-YIDINO(74228-25-4)

Safety Data

• Hazardous Substances Data: 74228-25-4(Hazardous Substances Data)

Usage

General Description

3-Di Cyano Methylidene-2,3-Dihydroxythiophene-3-Ylidino is a chemical compound with the molecular formula C6H3N3O2S. It is a highly reactive and versatile building block in organic chemistry, commonly used in the synthesis of various pharmaceuticals and agrochemicals. 3-DI CYANO METHYLIDINE-2,3-DIHYDROXYTHIOPHENE-3-YIDINO contains a thiophene ring with two hydroxyl groups and a cyano-methylidene group, making it a valuable intermediate in the development of new drugs and crop protection products. Its unique chemical structure and reactivity make it an important tool for researchers and chemists working in the field of organic synthesis and drug discovery.

Upstream product

• 109-77-3 malononitrile 
• 1127-35-1 1-benzothiophen-3(2H)-one 1,1-dioxide 
• 99846-47-6 2-Aethoxycarbonyl-3-oxo-2.3-dihydro-thionaphthen-1.1-dioxid 
• 94-02-0 ethyl 3-oxo-3-phenylpropionate 

Downstream Products

• 130685-72-2 4-Cyan-3-(4-methoxy-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-64-2 4-Cyan-3-(3-fluor-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-65-3 4-Cyan-3-(4-fluor-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-66-4 4-Cyan-3-(3-trifluormethyl-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-71-1 4-Cyan-3-(3-methyl-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-63-1 4-Cyan-3-(2-fluor-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-69-7 4-Cyan-3-(4-jod-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 131009-49-9 4-Cyan-3-(3,4-dichlor-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-73-3 4-Cyan-3-(3,4-dimethyl-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-70-0 4-Cyan-3-(2-fluor-4-jod-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-67-5 4-Cyan-3-(4-trifluormethyl-phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-48-2 3-Amino-4-cyan-1,2-dihydro-1-oxo-2-phenyl-<1H>benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 
• 130685-62-0 4-Cyan-2,3-dihydro-3-imino-2-(4-methoxyphenyl)-benzo<4,5-c>thieno<2,3-c>pyridazin-9,9-dioxid 
• 130685-49-3 4-Cyan-3-(phenylamino)-benzo<4,5>thieno<2,3-c>pyridin-9,9-dioxid 

Relevant articles and documents

Fused ring non-fullerene acceptors with benzothiophene dioxide end groups and their side chain effect investigations

The development of small molecule-based non-fullerene acceptors (NF-SMAs) greatly advanced the performances of polymer solar cells (PSCs) in recent years. As the foreseeability of commercializing this technology in the future, interest in reducing the materials cost is rising. To this end, efforts have been made in this work on exploring the usage of commercially available chemical segment of benzothiophene dioxide (BC) in constructing efficient NF-SMAs. Thus, we designed and synthesized two BC-based NF-SMAs, which showed high power conversion efficiency (PCE) of 7.59% also by device engineering and side chain engineering. Our work revealed the full potential of using BC end groups in constructing high-performance NF-SMAs and demonstrated the application of side chain engineering in tuning material properties and performances.

Fused-ring non-fullerene receptor material and preparation method thereof and organic solar battery

The invention relates to a fused-ring non-fullerene receptor material and a preparation method thereof and an organic solar battery. The fused-ring non-fullerene receptor material adopts a structuralgeneral formula as shown in the specification, wherein R

Method for preparing disperse blue 354

The invention discloses a method for preparing disperse blue 354. The method comprises the following steps: using dichloroethane as a reaction solvent, carbonyl iron powder as a catalyst, 3(2H)-indanone sulfur-1,1-dioxide and malononitrile as reaction raw materials, and obtaining an intermediate nitrile compound through a cyanation reaction; putting acetic acid, the intermediate nitrile compound, 2-methyl-4-aminobenzaldehyde and phosphoric acid into a reaction container to be stirred uniformly, then adding aluminum trichloride, putting bromohexane into a reaction system of a condensation section through a condensation reaction, and thus obtaining a target product through an alkylation reaction. A raw material 4-(N,N-dihexyl amino)-2-tolyl aldehyde is replaced with the 2-methyl-4-aminobenzaldehyde and the bromohexane; although one reaction is added, the added alkylation reaction and the condensation reaction are in the same system, and the operation difficulty coefficient is not added additionally; more importantly, the change of the technology promotes the process of the reaction to be more thorough, the yield of the product is further improved, and the total yield is 84% or more than 84%; and more importantly, industrialization is easy to realize, and the unit consumption of the product is reduced.