90069-81-1

Basic information

• Product Name: 3,4-DIAMINOTHIOPHENE DIHYDROCHLORIDE
• Synonyms: 3,4-THIOPHENDIAMINE DIHYDROCHLORIDE;3,4-DIAMINOTHIOPHENE DIHYDROCHLORIDE;3,4-DIAMINOTHIOPHENE DIHYDROCHLORIDE 99%;3,4-Diaminothiophene dihydrochloride,96%;3,4-Diaminothiophene dihydrochloride ,97%;3,4-ThiophenediaMine Dihydrochloride;3,4-ThiophenediaMine,hydrochloride (1:2);thiophene-3,4-diamine hydrochloride
• CAS NO: 90069-81-1
• Molecular Formula: C₄H₆N₂S*2ClH
• Molecular Weight: 187.09
• Product Categories: Functional Materials;Reagents for Conducting Polymer Research;Thiophene Derivatives (for Conduting Polymer Research);Thiophen;Sulfur & Selenium Compounds
• Mol File: 90069-81-1.mol
• Article Data: 7

Chemical Properties

• Melting Point: >150°C
• Boiling Point: 385.5 °C at 760 mmHg
• Flash Point: 186.9 °C
• Appearance: Gray or brown/Crystalline Powder
• Storage Temp.: 0-6°C
• CAS DataBase Reference: 3,4-DIAMINOTHIOPHENE DIHYDROCHLORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-DIAMINOTHIOPHENE DIHYDROCHLORIDE(90069-81-1)
• EPA Substance Registry System: 3,4-DIAMINOTHIOPHENE DIHYDROCHLORIDE(90069-81-1)

Safety Data

• Hazard Codes: Xn,T
• Statements: 20/21/22-39-43-41-25
• Safety Statements: 24/25-45-37-26
• RIDADR: UN 2811 6.1 / PGIII
• WGK Germany: 3
• Hazardous Substances Data: 90069-81-1(Hazardous Substances Data)

Usage

Chemical Properties

grey or brown crystalline powder

Uses

3,4-Diaminothiophene dihydrochloride can be used in the synthesis of thieno[3,4-b]pyrazine for thermoelectric applications. It can also be used in the synthesis of acenaphtho[1,2-b]thieno[3,4-e]pyrazine based acceptor molecules for the fabrication of organic transistors.

General Description

This material is a synthetic intermediate for organic electronics materials such as Arylenediimide-thiophene Derivatives for Organic n-channel field-effect transistors. 1They are also integral to the synthesis of thienopyrazine-based materials as low band gap materials for Organic Photovoltaic applications2 and as copolymer units for sensor applications.3

Upstream product

• 19985-45-6 3,4-dinitrothiophene 
• 52431-30-8 2,5-dibromo-3,4-dinitrothiophene 

Downstream Products

• 503040-73-1 N-(4-Aminothiophen-3-yl)-4-[(3,4-dimethoxyphenylamino)-methyl]-benzamide 
• 932705-64-1 Zn(C₄H₂S)(ONCHC₆H₃C₂(C₆H₄C₁₂H₂₅O))2 
• 848252-34-6 N-(3-amino-4-thienyl)-N'-(2,6-dichlorophenyl)thiourea 
• 1196982-54-3 N-(4-aminothiophen-3-yl)-4-[1-(2-dimethylaminoethyl)-3-(indan-5-yl)ureidomethyl]benzamide 
• 272-43-5 thieno<3,4-b>pyrazine 
• 78648-59-6 dimethyl-2,3 thieno<3,4-b>pyrazine 
• 78637-85-1 thiophene-3,4-diamine 
• 116538-96-6 3-aminothieno[3,2-b]pyridine-6-carbonitrile 

Relevant articles and documents

Photocontrolled Synthesis of n-Type Conjugated Polymers

Current approaches to synthesize π-conjugated polymers (CPs) are dominated by thermally driven, transition-metal-mediated reactions. Herein we show that electron-deficient Grignard monomers readily polymerize under visible-light irradiation at room temperature in the absence of a catalyst. The product distribution can be tuned by the wavelength of irradiation based on the absorption of the polymer. Conversion studies are consistent with an uncontrolled chain-growth process; correspondingly, chain extension produces all-conjugated n-type block copolymers. Preliminary results demonstrate that the polymerization can be expanded to donor–acceptor alternating copolymers. We anticipate that this method can serve as a platform to access new architectures of n-type CPs without the need for transition-metal catalysis.

In Situ Oxidation Synthesis of p-Type Composite with Narrow-Bandgap Small Organic Molecule Coating on Single-Walled Carbon Nanotube: Flexible Film and Thermoelectric Performance

Although composites of organic polymers or n-type small molecule/carbon nanotube (CNT) have achieved significant advances in thermoelectric (TE) applications, p-type TE composites of small organic molecules as thick surface coating layers on the surfaces of inorganic nanoparticles still remain a great challenge. Taking advantage of in situ oxidation reaction of thieno[3,4-b]pyrazine (TP) into TP di-N-oxide (TPNO) on single-walled CNT (SWCNT) surface, a novel synthesis strategy is proposed to achieve flexible films of TE composites with narrow-bandgap (1.19 eV) small molecule coating on SWCNT surface. The TE performance can be effectively enhanced and conveniently tuned by poly(sodium-p-styrenesulfonate) content, TPNO/SWCNT mass ratio, and posttreatment by various polar solvents. The maximum of the composite power factor at room temperature is 29.4 ± 1.0 μW m?1 K?2. The work presents a way to achieve flexible films of p-type small organic molecule/inorganic composites with clear surface coating morphology for TE application.

π-electron conjugated compound, manufacturing method therefor, and π-electron conjugated polymer obtained using same

Provided are a π-electron conjugated polymer having a constitutional unit represented by general formula (2) that is suitable as an electrochromic material that changes from a desired colored state to a decolored state, a new compound that is a raw materi