4-Bromo-5-phenyl-1H-1,2,3-triazole
4-Bromo-5-phenyl-1H-1,2,3-triazole (CAS: 21505-14-6) is a halogenated heterocyclic compound with the molecular formula C8H6BrN3 and a molecular weight of 224.06 g/mol. It serves as a valuable building block in organic synthesis, particularly within the fields of chemical synthesis and the development of novel heterocyclic compounds. Its structure offers versatile reactivity for further chemical transformations.
- Synonyms
- 21505-14-6

Organic Synthesis Intermediate
This compound functions as a key intermediate in the synthesis of more complex organic molecules. The presence of the bromine atom and the triazole ring allows for various coupling and functionalization reactions.
Heterocyclic Chemistry Research
It is utilised in research settings for exploring new synthetic routes and developing novel compounds with potential applications in pharmaceuticals and materials science.
Building Block for Novel Structures
As a functionalised heterocycle, 4-Bromo-5-phenyl-1H-1,2,3-triazole is employed in the construction of diverse molecular architectures.
| Molecular weight | 224.06 |
|---|---|
| Empirical formula | C8H6BrN3 |
| Assay | ≥97.0% (HPLC)≥97.0%97.0-103.0% (T) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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-Bromo-5-phenyl-1H-1,2,3-triazole used for?
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4-Bromo-5-phenyl-1H-1,2,3-triazole is primarily used as a building block and intermediate in organic synthesis and heterocyclic chemistry research.
What is the CAS number and molecular formula?
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The CAS number for 4-Bromo-5-phenyl-1H-1,2,3-triazole is 21505-14-6, and its molecular formula is C8H6BrN3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromo-5-phenyl-1H-1,2,3-triazole with an assay of ≥97.0% (HPLC) or ≥97.0%. We do not represent this product as USP, BP, or EP grade.
How should 4-Bromo-5-phenyl-1H-1,2,3-triazole be handled?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, faceshields, and gloves. This compound is classified as harmful if swallowed (H302).
Is this chemical controlled or scheduled?
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The provided data does not indicate that 4-Bromo-5-phenyl-1H-1,2,3-triazole is a controlled or scheduled substance.
How is this chemical packed and shipped?
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Tech Serve Solutions exports fine chemicals globally. Specific packing and shipping details can be provided upon request, adhering to all relevant international regulations.
How can I request a sample or quote?
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To request a sample or a quote for 4-Bromo-5-phenyl-1H-1,2,3-triazole, please contact our sales team through the website or by phone.
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