Thianaphthene-3-carboxaldehyde
Thianaphthene-3-carboxaldehyde (CAS: 5381-20-4), with the molecular formula C9H6OS and a molecular weight of 162.21 g/mol, is a benzothiophene derivative. This organic compound serves as a valuable building block in chemical synthesis, particularly for the creation of more complex heterocyclic structures and organic molecules. Its aldehyde functionality makes it reactive for various chemical transformations.
- IUPAC
- Benzo[b]thiophene-3-carboxaldehyde

Organic Synthesis Intermediate
Thianaphthene-3-carboxaldehyde is employed as a key intermediate in the synthesis of diverse organic compounds. Its structure lends itself to the construction of various heterocyclic systems and functionalized molecules for research and development.
Pharmaceutical Research
This compound can be utilised in the early stages of drug discovery and development. It may serve as a precursor for synthesising novel molecules with potential therapeutic applications, contributing to the development of new pharmaceuticals.
Materials Science
The benzothiophene core present in Thianaphthene-3-carboxaldehyde is a structural motif found in some advanced materials. It may be used in the development of organic electronic materials or other functionalised polymers.
| Molecular weight | 162.21 |
|---|---|
| Empirical formula | C9H6OS |
| Assay | 95% |
| Boiling point | 166 °C/20 mmHg(lit.) |
| Melting point | 53-57 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Flash point | >113 °C / >235.4 °F |
| Water hazard class (WGK, DE) | 3 |
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 Thianaphthene-3-carboxaldehyde primarily used for?
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Thianaphthene-3-carboxaldehyde is primarily used as an intermediate in organic synthesis, a building block for creating complex heterocyclic compounds, and in pharmaceutical and materials science research.
What are the CAS number and formula for Thianaphthene-3-carboxaldehyde?
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The CAS number for Thianaphthene-3-carboxaldehyde is 5381-20-4, and its empirical formula is C9H6OS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Thianaphthene-3-carboxaldehyde with a minimum assay of 95%. This product is suitable for research and chemical synthesis purposes and is not represented as USP, BP, or EP grade.
How should Thianaphthene-3-carboxaldehyde be handled safely?
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Handle Thianaphthene-3-carboxaldehyde with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. It has a flash point above 113 °C (235.4 °F).
Is Thianaphthene-3-carboxaldehyde a controlled substance?
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Based on the provided data, there is no indication that Thianaphthene-3-carboxaldehyde is a controlled substance.
How is Thianaphthene-3-carboxaldehyde packed, shipped, and exported?
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Tech Serve Solutions ensures appropriate packaging for stability and safety during transport. We are a global supplier and exporter of fine chemicals, adhering to international shipping regulations.
How can I request a sample or quote for Thianaphthene-3-carboxaldehyde?
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To request a sample or obtain a quote for Thianaphthene-3-carboxaldehyde, please contact our sales department through the inquiry form on our website or by calling our office.
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