4-Bromothiophenol
4-Bromothiophenol (CAS: 106-53-6, Formula: BrC6H4SH) is a sulfur-containing organic compound with a molecular weight of 189.07 g/mol. This aromatic thiol serves as a valuable intermediate and building block in organic synthesis. Its structure, featuring both a bromine atom and a thiol group on a benzene ring, allows for diverse chemical transformations, making it a key component in the development of complex molecules for various research and industrial applications.
- IUPAC
- 4-Bromobenzenethiol
- Synonyms
- 4-Bromobenzenethiol

Organic Synthesis Intermediate
Utilised as a versatile building block in the synthesis of more complex organic molecules. The reactive thiol group and the bromine atom offer distinct sites for chemical modification, facilitating the construction of novel compounds.
Pharmaceutical Research
Employed in the early stages of drug discovery and development, where it can be incorporated into potential therapeutic agents. Its unique structure is valuable for creating diverse chemical libraries for screening.
Material Science
Investigated for its potential in developing new materials, particularly in areas involving sulfur-containing polymers or functionalised surfaces. The aromatic nature and functional groups allow for integration into various material frameworks.
| Molecular weight | 189.07 |
|---|---|
| Linear formula | BrC6H4SH |
| Assay | 95% |
| Boiling point | 239 °C(lit.) |
| Melting point | 73-76 °C(lit.) |

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 | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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-Bromothiophenol primarily used for?
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4-Bromothiophenol is primarily used as an intermediate and building block in organic synthesis, with applications in pharmaceutical research and material science.
What is the CAS number and formula for 4-Bromothiophenol?
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The CAS number for 4-Bromothiophenol is 106-53-6, and its chemical formula is BrC6H4SH.
What grade and purity does Tech Serve Solutions supply for 4-Bromothiophenol?
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Tech Serve Solutions supplies 4-Bromothiophenol with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
How should 4-Bromothiophenol be handled safely?
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4-Bromothiophenol is a Warning substance, classified with H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust.
Is 4-Bromothiophenol suitable for export?
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Yes, 4-Bromothiophenol is exported by Tech Serve Solutions globally.
How can I request a quote or sample of 4-Bromothiophenol?
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To request a quote or sample of 4-Bromothiophenol, please contact our sales team through the website or by phone.
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