3-Bromothianaphthene
3-Bromothianaphthene (CAS: 7342-82-7; Formula: C8H5BrS; MW: 213.09) is a halogenated heterocyclic organic compound. It functions as a versatile building block in chemical synthesis, particularly for creating more complex molecules. Its structure, featuring a bromine atom on the benzothiophene core, allows for various synthetic transformations. This compound is essential for researchers and chemists engaged in developing novel materials and pharmaceutical intermediates.
- IUPAC
- 3-Bromobenzo[b]thiophene
- Synonyms
- 3-Bromobenzo[b]thiophene

Organic Synthesis Intermediate
3-Bromothianaphthene serves as a key intermediate in the synthesis of diverse organic compounds. The bromine atom can readily participate in cross-coupling reactions and nucleophilic substitution, facilitating the construction of complex molecular architectures.
Heterocyclic Chemistry Research
This compound is valuable for researchers exploring the chemistry of benzothiophenes and related heterocyclic systems. It can be used to introduce the benzothiophene moiety into larger structures or to study reaction mechanisms involving halogenated heterocycles.
Materials Science Applications
As a functionalized heterocycle, 3-Bromothianaphthene can be employed in the development of novel materials with specific electronic or optical properties, often via polymerisation or incorporation into conjugated systems.
| Molecular weight | 213.09 |
|---|---|
| Empirical formula | C8H5BrS |
| Assay | 95% |
| Boiling point | 269 °C/752.5 mmHg(lit.) |
| Density | 1.629 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.668(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 3-Bromothianaphthene used for?
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3-Bromothianaphthene is primarily used as a versatile building block and intermediate in organic synthesis, particularly for creating complex heterocyclic molecules and in materials science research.
What is the CAS number and formula for 3-Bromothianaphthene?
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The CAS number is 7342-82-7 and the empirical formula (Hill notation) is C8H5BrS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Bromothianaphthene with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations when handling 3-Bromothianaphthene?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended for respiratory protection. The substance has a flash point above 113 °C.
How is 3-Bromothianaphthene packed and exported?
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As a global supplier, Tech Serve Solutions professionally packs and exports fine chemicals, laboratory reagents, and pharmaceutical intermediates worldwide.
How can I request a sample or quote for 3-Bromothianaphthene?
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Please contact our sales department through the website to request a sample or a formal quotation for 3-Bromothianaphthene.
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