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Thieno[3,2-b]thiophene

Thieno[3,2-b]thiophene Structure
Thieno[3,2-b]thiophene structure
CAS No.
251-41-2
Chemical Name:
Thieno[3,2-b]thiophene
Synonyms
1,4-THIOPHTHENE;Thieno[3,2-b]thiophen;S1050;JACS-251-41-2;BUTTPARK 145\50-51;1,4-DITHIAPENTALENE;hieno[3,2-b]thiophene;Thieno[3,2-bjthiophen;THIENO[3,2-B]THIOPHENE;Thiophene [3,2-b] thiophene
CBNumber:
CB9370869
Molecular Formula:
C6H4S2
Molecular Weight:
140.23
MDL Number:
MFCD00179479
MOL File:
251-41-2.mol
MSDS File:
SDS
Last updated:2026-01-13 11:27:05
Product description Number Pack Size Price
Thieno[3,2-b]thiophene 95% 702668 1g $141
Thieno[3,2-b]thiophene 95% 702668 5g $497
Thieno[3,2-b]thiophene >98.0%(GC) T2513 1g $99
Thieno[3,2-b]thiophene >98.0%(GC) T2513 5g $395
Thieno[3,2-b]thiophene T345180 5g $365
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Thieno[3,2-b]thiophene Properties

Melting point 56 °C
Boiling point 71 °C / 1mmHg
Density 1.367±0.06 g/cm3(Predicted)
Flash point 98℃
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility soluble in Methanol
form powder to crystal
InChI InChI=1S/C6H4S2/c1-3-7-6-2-4-8-5(1)6/h1-4H
InChIKey VJYJJHQEVLEOFL-UHFFFAOYSA-N
SMILES C12C=CSC=1C=CS2
NIST Chemistry Reference Thieno[3,2-b]thiophene(251-41-2)
color White crystals
UNSPSC Code 12352103
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P264-P270-P301+P312-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn
Risk Statements  22-36/37/38
Safety Statements  26-36/37
RIDADR  UN 3335
WGK Germany  3
Hazard Note  Harmful
HS Code  29309090
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
1
0 0

Thieno[3,2-b]thiophene price More Price(42)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 702668 Thieno[3,2-b]thiophene 95% 251-41-2 1g $141 2025-07-31 Buy
Sigma-Aldrich 702668 Thieno[3,2-b]thiophene 95% 251-41-2 5g $497 2025-07-31 Buy
TCI Chemical T2513 Thieno[3,2-b]thiophene >98.0%(GC) 251-41-2 1g $99 2025-07-31 Buy
TCI Chemical T2513 Thieno[3,2-b]thiophene >98.0%(GC) 251-41-2 5g $395 2025-07-31 Buy
TRC T345180 Thieno[3,2-b]thiophene 251-41-2 5g $365 2021-12-16 Buy
Product number Packaging Price Buy
702668 1g $141 Buy
702668 5g $497 Buy
T2513 1g $99 Buy
T2513 5g $395 Buy
T345180 5g $365 Buy

Thieno[3,2-b]thiophene Chemical Properties,Uses,Production

General description

Thieno(3,2-b)thiophene (TT) is an electron rich conjugated polymer that has a quinoidal structure with a narrow band gap. It facilitates a strong intermolecular networking.

Application

Thieno[3,2-b]thiophene may be used as conjugated side chains in the synthesis of donor-acceptor copolymers. It finds potential applications in the enhancement of power conversion efficiency (PCE) for organic solar cells.

Classification

Thiophene, Fused thiophene, Dithiapentalene, Heterocylic aromatics, Five-membered ring, Semiconductor synthesis intermediates, Low band gap polymers OFETs, Organic Photovoltaics, Polymer solar cells

preparation

Thieno[3,2-b]thiophene, also known as thienothiophene (TT), is a heterocyclic compound. It belongs to the family of fused thiopehenes and is widely used as an intermediate for the synthesis of small molecules and polymers in the application of organic field-effect transistors (OFETs) and organic photovoltaic devices (OPV).
Fused thiophenes are more electron-rich and more structurally rigid, with extended π-conjugation so they are good candidates for adjusting the band gap of the organic polymer semiconducting materials, i.e. Poly[2,5-bis(3-hexadecylthiophen-2-yl)thieno[3,2-b]thiophene] (also known as PBTTT).
251-41-2 synthesis

Description

Thieno[3,2-b]thiophene, also known as thienothiophene (TT), is a heterocyclic compound. It belongs to the family of fused thiopehenes and is widely used as an intermediate for the synthesis of small molecules and polymers in the application of organic field-effect transistors (OFETs) and organic photovoltaic devices (OPV).

Chemical Properties

White to yellow Solid

Uses

TT may be used as conjugated side chains in the synthesis of donor-acceptor copolymers. It finds potential applications in the enhancement of power conversion efficiency (PCE) for organic solar cells.

General Description

Thieno(3,2-b)thiophene (TT) is an electron rich conjugated polymer that has a quinoidal structure with a narrow band gap. It facilitates a strong intermolecular networking.

Thieno[3,2-b]thiophene synthesis

930-96-1
251-41-2
Synthesis of Thieno[3,2-b]thiophene from 3-Bromothiophene-2-carbaldehyde

Thieno[3,2-b]thiophene Preparation Products And Raw materials

Raw materials

Acetic acid,2-(3-thienylthio)- Thieno[3,2-b]thiophene, 2-(trimethylsilyl)- 3-Bromothiophene-2-carbaldehyde METHYL THIENO[3,2-B!THIOPHENE-2-CARBOXYLATE, 97 Thieno[3,2-b]thiophene-2-methanol
THIENO[3,2-B]THIOPHENE-2-CARBOXYLIC ACID Thieno[3,2-b]thiophene-2-carboxaldehyde Thieno[3,2-b]thiophene-2-carboxylic acid ethyl ester

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Preparation Products

1,2,5,6-Tetrathiocane TETRABROMO-THIENO[3,2-B]THIOPHENE Thieno[3,2-b]thiophene-2,5-dicarboxaldehyde 2,5-Dichloro-thieno[3,2-b]thiophene 4,4,5,5-tetramethyl-2-(thieno[3,2-b]thiophen-2-yl)-1,3,2-dioxaborolane

Thieno[3,2-b]thiophene Suppliers

Global( 315)Suppliers
Supplier Tel Email Country ProdList Advantage
Nanjing Yushan Wanfang Biotechnology Co., Ltd.
+86-025-84918180 +86-18014482516 3552541679@qq.com China 997 58
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD 		+86-13017695106 +86-13676922317 jiuyitime@fdachem.com China 16513 58
Springchem New Material Technology Co.,Limited 		+86-021-62885108 +8613917661608 info@spring-chem.com China 2068 57
Capot Chemical Co.,Ltd. 		+86-（0）57185586718; +8613336195806 sales@capot.com China 29735 60
Shanghai Daken Advanced Materials Co.,Ltd 		+86-2158073036 info@dakenam.com China 13799 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21597 55
Nanjing ChemLin Chemical Industry Co., Ltd. 		025-83697070 product@chemlin.com.cn CHINA 3009 60
ATK CHEMICAL COMPANY LIMITED 		+undefined-21-51877795 ivan@atkchemical.com China 33024 60
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29831 58
Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd. 		0431-80514535 13634302652 Extension@chemextension.com CHINA 967 58
Supplier Advantage
Nanjing Yushan Wanfang Biotechnology Co., Ltd.
58
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD 		58
Springchem New Material Technology Co.,Limited 		57
Capot Chemical Co.,Ltd. 		60
Shanghai Daken Advanced Materials Co.,Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55
Nanjing ChemLin Chemical Industry Co., Ltd. 		60
ATK CHEMICAL COMPANY LIMITED 		60
career henan chemical co 		58
Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd. 		58

View Lastest Price from Thieno[3,2-b]thiophene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Thieno[3,2-b]thiophene pictures 2025-11-18 Thieno[3,2-b]thiophene
251-41-2
 US $1.10 / g 1g 99.00% 100 Tons Dideu Industries Group Limited
Thieno3,2-bthiophene pictures 2025-10-13 Thieno3,2-bthiophene
251-41-2
 US $1.10-9.90 / kg 1kg 99%min 100kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
hieno[3,2-b]thiophene pictures 2021-10-15 hieno[3,2-b]thiophene
251-41-2
 US $10.00 / KG 1KG 99% 20 Tons Hebei Zhanyao Biotechnology Co. Ltd

Thieno[3,2-b]thiophene Spectrum

Thieno[3,2-b]thiophene(251-41-2)1HNMRThieno[3,2-b]thiophene(251-41-2)FT-IR

251-41-2(Thieno[3,2-b]thiophene)Related Search:

Thiophene Dibenzothiophene Cephalothin sodium Thifensulfuron methyl Thifensulfuron
Tetrahydrothiophene Thieno[3,2-b]thiophene-2-carboxaldehyde THIENO[3,2-B]THIOPHENE-2-CARBOXYLIC ACID,THIENO[3,2-B]THIOPHENE-2-CARBOXYLIC ACID THIENO[2,3-B]THIOPHENE,THIENO[2,3-B]THIOPHENE Thieno[3,2-b]thiophene-2-carbonitrile
THIENO(3 2-B)PYRIDIN-7-OL Thieno[3,2-b]thiophene-2,5-dicarboxaldehyde thieno[3,2-b]thiophene-2,5-dicarboxylic acid Tris(2-phenylpyridine)iridium (Ir(ppy)3) Thieno[2,3-d]pyrimidine (8CI,9CI)
thieno[3,2-c]pyridine Thiophene-2,3-dicarboxylicacid Ethyl thiophene-3-carboxylate

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THIENO[3,2-B]THIOPHENE 1,4-DITHIAPENTALENE 1,4-THIOPHTHENE 1,4-Dithiapentalene 1,4-Thiophthene BUTTPARK 145\50-51 4-Dithiapentalene 1,4-Thiophthene Thieno[3,2-b]thiophen Thieno[3,2-b]thiophene 1,4-Dithiapentalene JACS-251-41-2 Thieno[3,2-b]thiophene ISO 9001：2015 REACH S1050 hieno[3,2-b]thiophene Thienothiophene, Thieno[3,2-b]thiophene Thieno[3,2-b]thiophene (7CI, 8CI, 9CI, ACI) Thiophene [3,2-b] thiophene Thieno[3,2-b]thiophene Thieno[3,2-bjthiophen 251-41-2 C6H4S2 Heterocycle-oher series Electronic Chemicals Fused Ring Systems BB16014