Thieno[3,2-b]thiophene-2-carboxylic acid

Modify Date: 2025-08-24 19:37:27

Thieno[3,2-b]thiophene-2-carboxylic acid Structure
Thieno[3,2-b]thiophene-2-carboxylic acid structure
 Common Name Thieno[3,2-b]thiophene-2-carboxylic acid
CAS Number 1723-27-9 Molecular Weight 184.236
Density 1.6±0.1 g/cm3 Boiling Point 386.7±22.0 °C at 760 mmHg
Molecular Formula C7H4O2S2 Melting Point 225-227ºC
MSDS USA Flash Point 187.6±22.3 °C

 Names

Name thieno[3,2-b]thiophene-5-carboxylic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 386.7±22.0 °C at 760 mmHg
Melting Point 225-227ºC
Molecular Formula C7H4O2S2
Molecular Weight 184.236
Flash Point 187.6±22.3 °C
Exact Mass 183.965271
PSA 93.78000
LogP 4.91
Vapour Pressure 0.0±0.9 mmHg at 25°C
Index of Refraction 1.770
Storage condition 2-8°C

 Safety Information

Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases S26-S37/39
HS Code 2934999090

 Synthetic Route

Ethyl thieno[3,2-b]thiophene-2-carboxylate structure

Ethyl thieno[3,...

CAS#:201004-08-2

~96%

Thieno[3,2-b]thiophene-2-carboxylic acid Structure

Thieno[3,2-b]th...

CAS#:1723-27-9

Literature: Kawabata, Kohsuke; Takeguchi, Masaki; Goto, Hiromasa Macromolecules, 2013 , vol. 46, # 6 p. 2078 - 2091
3-Bromo-2-thiophenecarbaldehyde structure

3-Bromo-2-thiop...

CAS#:930-96-1

~%

Thieno[3,2-b]thiophene-2-carboxylic acid Structure

Thieno[3,2-b]th...

CAS#:1723-27-9

Literature: Journal of the Chemical Society - Perkin Transactions 1, , # 22 p. 3465 - 3470
N/A structure

N/A

CAS#:98778-43-9

~%

Thieno[3,2-b]thiophene-2-carboxylic acid Structure

Thieno[3,2-b]th...

CAS#:1723-27-9

Literature: Journal of medicinal chemistry, , vol. 28, # 12 p. 1896 - 1903
2-Thiophenecarboxaldehyde structure

2-Thiophenecarb...

CAS#:98-03-3

~%

Thieno[3,2-b]thiophene-2-carboxylic acid Structure

Thieno[3,2-b]th...

CAS#:1723-27-9

Literature: Journal of medicinal chemistry, , vol. 28, # 12 p. 1896 - 1903
2-sulfanylidene-5-(thiophen-2-ylmethylidene)thiazolidin-4-one structure

2-sulfanylidene...

CAS#:6319-47-7

~%

Thieno[3,2-b]thiophene-2-carboxylic acid Structure

Thieno[3,2-b]th...

CAS#:1723-27-9

Literature: Journal of medicinal chemistry, , vol. 28, # 12 p. 1896 - 1903
1-thieno[3,2-b]thiophen-2-yl-ethanone structure

1-thieno[3,2-b]...

CAS#:39131-69-6

~%

Thieno[3,2-b]thiophene-2-carboxylic acid Structure

Thieno[3,2-b]th...

CAS#:1723-27-9

Literature: Journal of the Chemical Society, , p. 305,308
Thieno3,2-bthiophene structure

Thieno3,2-bthiophene

CAS#:251-41-2

~%

Thieno[3,2-b]thiophene-2-carboxylic acid Structure

Thieno[3,2-b]th...

CAS#:1723-27-9

Literature: Journal of the Chemical Society, , p. 305,308
Thieno3,2-bthiophene structure

Thieno3,2-bthiophene

CAS#:251-41-2

N,N-Dimethylaniline structure

N,N-Dimethylaniline

CAS#:121-69-7

~%

Thieno[3,2-b]thiophene-2-carboxylic acid Structure

Thieno[3,2-b]th...

CAS#:1723-27-9

Literature: Journal of the Chemical Society, , p. 305,308

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

Thieno[3,2-b]thiophen-2-carbonsaeure
Thieno[3,2-b]thiophene-2-carboxylic acid
thiopheno[3,2-b]thiophene-2-carboxylic acid
THI073
MFCD00115174
2-carboxy-thieno[3,2-b]thiophene
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Chemsrc provides Thieno[3,2-b]thiophene-2-carboxylic acid(CAS#:1723-27-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of Thieno[3,2-b]thiophene-2-carboxylic acid are included as well.>> amp version: Thieno[3,2-b]thiophene-2-carboxylic acid

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