thiophene-2-carbaldehyde

Basic Information

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CAS Number

98-03-3

Molecular Formula

C5H4OS

Molecular Weight

112.15 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Aldehydes

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

<10°C

Boiling Point

198 °C<br />75-77 °C/11 mmHg

Density

1.2 g/mL at 25 °C

Refractive Index

n20/D 1.591(lit.)

SMILES

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O=Cc1cccs1

InChI

InChI=1S/C5H4OS/c6-4-5-2-1-3-7-5/h1-4H

InChIKey

CNUDBTRUORMMPA-UHFFFAOYSA-N

LogP

1.5606

Topological Polar Surface Area

17.07 Å²

Hydrogen Bond Donor/Acceptor

0 / 1

Complexity

72.5

Safety Information

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GHS Hazard Pictograms

H302

H315

H319

H335

Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Sensitiveness

Air Sensitive

Synonyms & References

English

Thiophene-2-aldehyde
2-Thiophenecarboxaldehyde,Thenaldehyde
2-Thiophenecarboxald
2-Thiophenecarboxaldehyde (stabilized with HQ)
2-Formylthiophene, 2-Thenaldehyde
THIOPHENE-2-CARBALDEHYDE FOR SYNTHESIS
Thiophene-2-carboxaldehyde
2-Thenaldehyde
2-Thiophene Carboxaldehyde
thiophene-2-carbaldehyde
2-Formylthiophene
2-Thiophenecarboxaldehyde
2-Thiophenealdehyde
2-Thienylaldehyde
2-Thiophenecarbaldehyde
2-Thienylcarboxaldehyde
2-Thienaldehyde
formylthiophene
alpha-Formylthiophene
2-Thiophenaldehyde
Thenaldehyde
alpha-Thiophenecarboxaldehyde
.alpha.-Formylthiophene
2-thiophencarboxaldehyde
2-thienal
thiophenecarboxaldehyde
thiophen-2-carbaldehyde
2-thiophene car
2-Formylthiofuran
2-Thienylcarbaldehyde
2-Thiofurancarboxaldehyde

MDL Number

MFCD00005429

Customs Code

29349990

FAQ

What is thiophene-2-carbaldehyde (CAS: 98-03-3)?

Thiophene-2-carbaldehyde, with the CAS number 98-03-3, is a heterocyclic organic compound containing a thiophene ring fused with a formyl group. It is a yellow liquid with a strong odor, soluble in organic solvents, and commonly used as an intermediate in chemical synthesis. Its molecular formula is C5H4OS.

What are the main uses of thiophene-2-carbaldehyde (CAS: 98-03-3)?

Thiophene-2-carbaldehyde is primarily used in pharmaceutical research for the synthesis of various drugs and bioactive compounds. It also finds applications in organic chemistry as a precursor for dyes, pesticides, and materials. Its versatility makes it a key component in industrial and research settings involving functional group modifications.

Is thiophene-2-carbaldehyde (CAS: 98-03-3) safe?

Thiophene-2-carbaldehyde is considered hazardous due to its potential to cause skin and eye irritation. It should be handled with care, using appropriate protective equipment such as gloves and goggles. Safety standards recommend working in well-ventilated areas and following OSHA guidelines to minimize exposure risks.

How should thiophene-2-carbaldehyde (CAS: 98-03-3) be stored?

Thiophene-2-carbaldehyde should be stored in a cool, dry, and dark place, ideally at 2-8°C. It is sensitive to light and moisture, so it should be kept in a sealed, airtight container. Proper storage ensures stability and prevents degradation of the compound.