4-Bromothiazole
4-Bromothiazole (CAS: 34259-99-9) is a halogenated heterocyclic compound with the molecular formula C3H2BrNS and a molecular weight of 164.02 g/mol. It serves as a valuable building block in organic synthesis, particularly for creating more complex molecules. This reagent is essential for researchers and chemists in pharmaceutical and fine chemical industries engaged in developing novel compounds and exploring new synthetic pathways. Its utility lies in its reactive bromine atom and thiazole core.

Organic Synthesis Intermediate
4-Bromothiazole is employed as a key intermediate in the synthesis of various organic compounds. Its structure allows for facile functionalization, making it a versatile component in multi-step synthetic routes.
Pharmaceutical Research
This compound is utilised in the development of new pharmaceutical agents. The thiazole moiety is present in many biologically active molecules, and bromothiazoles are often used to introduce this structural feature.
Agrochemical Development
Researchers may use 4-Bromothiazole in the discovery and synthesis of novel agrochemicals, leveraging its heterocyclic structure for potential pesticidal or herbicidal activities.
Material Science
As a functionalised heterocycle, 4-Bromothiazole can be incorporated into polymers or organic materials to impart specific electronic or physical properties.
| Molecular weight | 164.02 |
|---|---|
| Empirical formula | C3H2BrNS |
| Assay | 97% |
| Density | 1.839 g/mL at 25 °C |
| Refractive index | n20/D 1.602 |


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
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 101 °C / 213.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-39 |
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-Bromothiazole used for?
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4-Bromothiazole (CAS: 34259-99-9) is primarily used as a building block in organic synthesis, particularly in the pharmaceutical and fine chemical industries for developing new compounds.
What is the CAS number and formula for 4-Bromothiazole?
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The CAS number for 4-Bromothiazole is 34259-99-9, and its empirical formula is C3H2BrNS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromothiazole with a minimum assay of 97%. We do not represent this product as USP, EP, or BP grade.
How should 4-Bromothiazole be handled safely?
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4-Bromothiazole is a Danger category substance (GHS05, GHS07) and is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye damage (H318), and may cause respiratory irritation (H335). Always use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Ensure adequate ventilation. Refer to the Safety Data Sheet for detailed handling instructions.
How is 4-Bromothiazole packed, shipped, and exported?
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Tech Serve Solutions offers 4-Bromothiazole in various pack sizes suitable for laboratory and industrial use. We adhere to all international shipping regulations for hazardous chemicals and export globally.
How can I request a quote or sample for 4-Bromothiazole?
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To request a quote or sample for 4-Bromothiazole, please visit our website or contact our sales team directly with your requirements.
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