4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid

Basic Information

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CAS Number

7712-05-2

Molecular Formula

C7H6O2S2

Molecular Weight

186.26 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

240°C

Boiling Point

419.0±45.0 °C at 760 mmHg

Density

1.551

Flash Point

207.2±28.7 °C

Vapor Pressure

0.0±1.0 mmHg at 25°C

SMILES

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C1C2=C(CS1)SC(=C2)C(=O)O

InChI

InChI=1S/C7H6O2S2/c8-7(9)5-1-4-2-10-3-6(4)11-5/h1H,2-3H2,(H,8,9)

InChIKey

RBINIIIGSUWMLQ-UHFFFAOYSA-N

LogP

2.1931000000000003

Topological Polar Surface Area

37.3 Å²

Hydrogen Bond Donor/Acceptor

1 / 2

Complexity

183

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Synonyms & References

English

CS-W004513
DTXSID40736452
4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid
Thieno[3,4-b]thiophene-2-carboxylic acid, 4,6-dihydro-
BCP21102
AKOS016002097
A851049
AMY27028
4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylicacid
SB66787
4,6-dihydrothieno[2,3-c]thiophene-2-carboxylic acid
DS-17372
D4071
7712-05-2
MFCD20642620
SCHEMBL1661408
C7H6O2S2
2023AC
FCH1222474
AX8222900
4,6-dihydrothieno[3,4-b]thiophene-2-carboxylic aci

MDL Number

MFCD20642620

Customs Code

2934999090

FAQ

What are the physical and chemical properties of 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS: 7712-05-2)?

4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS: 7712-05-2) is a solid with a crystalline form. Its molecular weight is approximately 218.24 g/mol. This compound is slightly soluble in water and has good solubility in common organic solvents. It exhibits moderate reactivity and is susceptible to hydrolysis under basic conditions. It is not flammable but may react with strong oxidizers.

How is 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS: 7712-05-2) typically synthesized?

4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid can be synthesized through Friedel-Crafts acylation of 4,6-dihydrothieno[3,4-b]thiophene with acyl chloride in the presence of a Lewis acid catalyst, such as aluminum chloride. The yield can reach up to 85% under optimal conditions. This method ensures high selectivity to the desired product.

What industries use 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS: 7712-05-2)?

4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS: 7712-05-2) finds applications in the pharmaceutical industry for the synthesis of certain drugs, in the polymer industry for developing advanced materials, and in the semiconductor industry for use in electronic devices. It is also used in the production of sensors due to its unique chemical properties.

What precautions should be taken when handling 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS: 7712-05-2)?

When handling 4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS: 7712-05-2), it is essential to wear appropriate personal protective equipment (PPE) including gloves, safety goggles, and a lab coat. It should be stored in a cool, dry place away from direct sunlight and heat sources. Spills should be handled in a well-ventilated area using appropriate absorbents. Always refer to a Material Safety Data Sheet (MSDS) for specific safety guidelines.