5-Bromopyridine-2-thiol
5-Bromopyridine-2-thiol (CAS: 56673-34-8) is a heterocyclic organic compound with the empirical formula C5H4BrNS and a molecular weight of 190.06 g/mol. This pyridine derivative features both a bromine atom and a thiol group, making it a valuable intermediate in organic synthesis. It is primarily utilised as a building block in the chemical industry for the construction of more complex molecules, particularly within pharmaceutical and agrochemical research.
- IUPAC
- 3-Bromo-6-mercaptopyridine
- Synonyms
- 3-Bromo-6-mercaptopyridine

Organic Synthesis Intermediate
Serves as a key building block for synthesising diverse organic compounds. Its reactive thiol and bromo functionalities allow for various coupling and substitution reactions.
Pharmaceutical Research
Employed in the development of novel pharmaceutical agents. The pyridine scaffold is a common structural motif in many biologically active molecules.
Agrochemical Development
Used in the creation of new crop protection agents. Heterocyclic compounds are frequently explored for their potential pesticidal and herbicidal activities.
Material Science
Potentially applicable in the synthesis of functional materials where specific heterocyclic or sulfur-containing moieties are desired.
| Molecular weight | 190.06 |
|---|---|
| Empirical formula | C5H4BrNS |
| Assay | 95% |
| Melting point | 202-208 °C |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| 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 5-Bromopyridine-2-thiol primarily used for?
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5-Bromopyridine-2-thiol is primarily used as a building block and intermediate in organic synthesis, particularly for the development of pharmaceuticals and agrochemicals.
What is the CAS number and formula for 5-Bromopyridine-2-thiol?
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The CAS number for 5-Bromopyridine-2-thiol is 56673-34-8, and its empirical formula is C5H4BrNS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Bromopyridine-2-thiol with an assay of 95%. We do not represent this product as USP, BP, EP, or other pharmacopoeial grades unless explicitly stated.
What are the primary safety hazards associated with 5-Bromopyridine-2-thiol?
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5-Bromopyridine-2-thiol is classified as Danger, with hazards including being harmful if swallowed (H302), causing skin irritation (H315), causing serious eye damage (H318), and potentially causing respiratory irritation (H335).
How is 5-Bromopyridine-2-thiol typically packed and shipped?
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Products are carefully packed according to international shipping regulations. Tech Serve Solutions is a global supplier and exporter, experienced in handling and shipping chemical reagents worldwide.
How can I request a sample or quote for 5-Bromopyridine-2-thiol?
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To request a sample or a quotation, please use the contact form on our website or reach out to our sales department directly.
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