2-Chloro-4-(4-bromophenyl)thiazole
2-Chloro-4-(4-bromophenyl)thiazole (CAS 3884-33-1) is a halogenated heterocyclic compound with the molecular formula C9H5BrClNS and a molecular weight of 274.56 g/mol. It serves as a valuable building block in organic synthesis, particularly in the development of novel chemical entities. Its structure, featuring both a thiazole ring and bromophenyl moiety, makes it a versatile intermediate for further chemical functionalisation and incorporation into more complex molecules.

Chemical Synthesis Intermediate
This compound is utilised as a key intermediate in complex organic synthesis pathways. Its halogenated heterocyclic structure allows for diverse reactions, enabling the construction of advanced molecular architectures.
Research and Development
2-Chloro-4-(4-bromophenyl)thiazole is employed in research laboratories for the exploration of new chemical reactions and the synthesis of novel compounds. It is particularly useful in medicinal chemistry programmes exploring thiazole derivatives.
Building Block for Heterocycles
As a heterocyclic building block, this chemical is instrumental in synthesising a range of substituted thiazoles and related heterocyclic systems, offering a platform for diverse chemical modifications.
| Molecular weight | 274.56 |
|---|---|
| Empirical formula | C9H5BrClNS |
| Assay | 97% |
| Melting point | 110-114 °C |


Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-37/38-41 |
| Safety statements (S) | 26-39-45 |
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 2-Chloro-4-(4-bromophenyl)thiazole used for?
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2-Chloro-4-(4-bromophenyl)thiazole is primarily used as a building block in organic synthesis and for research and development purposes, particularly in the creation of novel chemical entities and complex heterocyclic structures.
What are the CAS number and formula for 2-Chloro-4-(4-bromophenyl)thiazole?
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The CAS number for 2-Chloro-4-(4-bromophenyl)thiazole is 3884-33-1, and its empirical formula (Hill notation) is C9H5BrClNS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-4-(4-bromophenyl)thiazole with a minimum assay of 97%. This is a technical grade product, and TSS does not represent it as USP, BP, or EP grade.
How should 2-Chloro-4-(4-bromophenyl)thiazole be handled safely?
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This compound is classified as Danger, with hazards including acute toxicity (oral), skin irritation, serious eye damage, respiratory irritation, and potential long-term effects on aquatic life. Handle with appropriate personal protective equipment, including eyeshields, face shields, gloves, and a P2 respirator, in a well-ventilated area. Refer to the Safety Data Sheet for full details.
How is 2-Chloro-4-(4-bromophenyl)thiazole packed, shipped, and exported?
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2-Chloro-4-(4-bromophenyl)thiazole is shipped and exported in compliance with relevant transport regulations, including UN 2811 classification for toxic solid. Packaging is designed to ensure product integrity and safety during transit.
How can I request a sample or quote for 2-Chloro-4-(4-bromophenyl)thiazole?
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To request a sample or a quote for 2-Chloro-4-(4-bromophenyl)thiazole, please contact the Tech Serve Solutions sales team through our website or by calling our dedicated line, providing your contact details and intended quantity.
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