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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
TDS File:
TDS
Last updated:2026-05-28 05:56:46
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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)  Exclamation Mark (GHS07)
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(79)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 702668 Thieno[3,2-b]thiophene 95% 251-41-2 1g $150 2026-04-30 Buy
Sigma-Aldrich 702668 Thieno[3,2-b]thiophene 95% 251-41-2 5g $529 2026-04-30 Buy
TCI Chemical T2513 Thieno[3,2-b]thiophene >98.0%(GC) 251-41-2 1g $84 2026-04-30 Buy
TCI Chemical T2513 Thieno[3,2-b]thiophene >98.0%(GC) 251-41-2 5g $336 2026-04-30 Buy
Usbiological 290665 Thieno[3,2-b]thiophene Asreported 251-41-2 250mg $340 2026-06-03 Buy
Product number Packaging Price Buy
702668 1g $150 Buy
702668 5g $529 Buy
T2513 1g $84 Buy
T2513 5g $336 Buy
290665 250mg $340 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( 319)Suppliers
Supplier Tel Email Country ProdList Advantage
Suzhou ChemWe Chemical Co., Ltd. 512-62706911 13401923197 sales@chemwe.com China 94 56
Hyper, Inc. 18966379725 1028592743@qq.com China 82 58
Derthon Optoelectronic Materials Sci. Tech. Co., Ltd. 0755-26718755 13266723223 sales@derthon.com China 1022 56
Hubei wallison pharm pharmaceutical technology co., LTD. 0724-2216698 56160610@qq.com China 104 58
Nanjing Jubai Biomedical Technology Co., Ltd. 13585203734 info@jbzml.com China 200 58
Zhengzhou HQ Material Co., Ltd. 67759225 13526468238 sale@hqmat.com China 1399 58
Shanghai Yaoke Biotechnology Co., Ltd 19943855286 wangyangguang@trizpharma.cn China 432 58
Shanghai Boyle Chemical Co., Ltd. sales@boylechem.com China 2915 55
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Supplier Advantage
Suzhou ChemWe Chemical Co., Ltd. 56
Hyper, Inc. 58
Derthon Optoelectronic Materials Sci. Tech. Co., Ltd. 56
Hubei wallison pharm pharmaceutical technology co., LTD. 58
Nanjing Jubai Biomedical Technology Co., Ltd. 58
Zhengzhou HQ Material Co., Ltd. 58
Shanghai Yaoke Biotechnology Co., Ltd 58
Shanghai Boyle Chemical Co., Ltd. 55
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Thieno3,2-bthiophene pictures 2026-08-25 Thieno3,2-bthiophene
251-41-2
 $1.10-9.90 1kg 99%min 100kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
Thieno[3,2-b]thiophene pictures 2026-08-20 Thieno[3,2-b]thiophene
251-41-2
 $1.10 1g 99.00% 100 Tons Dideu Industries Group Limited
hieno[3,2-b]thiophene pictures 2021-10-15 hieno[3,2-b]thiophene
251-41-2
 $10.00 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 Thieno[3,2-b]thiophene-2-carboxaldehyde Thifensulfuron methyl
Thifensulfuron Tetrahydrothiophene Thieno[3,2-b]thiophene-2-carbonitrile 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 Thieno(3 2-b)pyridin-7-ol
Thieno[3,2-b]thiophene-2-carboxylic acid Thieno[2,3-b]thiophene 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