4,5-Dihydro-3(2H)-thiophenone
4,5-Dihydro-3(2H)-thiophenone (CAS: 1003-04-9) is a versatile heterocyclic organic sulfur compound with the molecular formula C4H6OS and a molecular weight of 102.15 g/mol. It is recognised as a volatile organic sulfur compound (VOSC) and serves as a valuable building block in chemical synthesis. This compound is particularly useful in the preparation of thiophene derivatives and related heterocyclic structures.
- IUPAC
- 3-Thiophanone,Tetrahydrothiophen-3-one
- Synonyms
- 3-ThiophanoneTetrahydrothiophen-3-oneC4H6OS
Chemical Synthesis Intermediate
4,5-Dihydro-3(2H)-thiophenone is widely employed as a key intermediate in organic synthesis, particularly for the construction of thiophene-containing molecules and other heterocyclic systems. Its reactivity allows for diverse synthetic transformations.
Heterocyclic Building Block
As a C4 to C6 heterocyclic building block, this compound is instrumental in the development of novel chemical entities. It is frequently utilised in academic and industrial research settings for its structural utility.
Research and Development
This compound finds application in various R&D projects, contributing to the exploration of new materials, pharmaceuticals, and agrochemicals due to its unique structural features and reactivity.
| Molecular weight | 102.15 |
|---|---|
| Empirical formula | C4H6OS |
| Assay | 98% |
| Boiling point | 175 °C(lit.) |
| Density | 1.194 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.528(lit.) |
| Vapour density | >1 (vs air) |
| Application | 4,5-Dihydro-3(2H)-thiophenone is a volatile organic sulfur compound (VOSC) produced by basidiomycetous yeasts1. |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 78 °C / 172.4 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4,5-Dihydro-3(2H)-thiophenone used for?
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4,5-Dihydro-3(2H)-thiophenone is used as a building block in chemical synthesis, particularly for creating thiophene derivatives and other heterocyclic compounds. It is also recognised as a volatile organic sulfur compound (VOSC) and is employed in research and development.
What are the CAS number and formula for 4,5-Dihydro-3(2H)-thiophenone?
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The CAS number is 1003-04-9, and the empirical formula (Hill notation) is C4H6OS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4,5-Dihydro-3(2H)-thiophenone with an assay of 98%. We do not represent this product as meeting USP, BP, EP, or other pharmacopoeia standards.
How should 4,5-Dihydro-3(2H)-thiophenone be handled safely?
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Handle with care. This compound is a warning substance (GHS07) and may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Ensure adequate ventilation and use appropriate personal protective equipment, including eyeshields and gloves. Consult the Safety Data Sheet for comprehensive handling instructions.
Is 4,5-Dihydro-3(2H)-thiophenone a controlled substance?
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The provided data does not indicate that 4,5-Dihydro-3(2H)-thiophenone is a controlled substance.
How is 4,5-Dihydro-3(2H)-thiophenone packed and shipped?
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Tech Serve Solutions expertly packs and exports chemicals globally, adhering to all relevant shipping regulations. Specific packaging details are available upon request.
How can I request a sample or quote for 4,5-Dihydro-3(2H)-thiophenone?
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To request a sample or a quotation, please contact our sales team through the website or by phone, providing your specific requirements.
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