5-(5-Bromo-2-thienyl)-1H-tetrazole solution
5-(5-Bromo-2-thienyl)-1H-tetrazole solution (CAS: 211943-12-3; Formula: C5H3BrN4S; MW: 231.07) is a halogenated heterocyclic compound supplied by Tech Serve Solutions. This solution is prepared to a concentration of 30% in Dimethylformamide (DMF), featuring a refractive index of n20/D 1.4640. Its properties make it a useful building block in chemical synthesis, particularly within research and development settings for novel compound exploration.

Organic Synthesis Intermediate
This tetrazole derivative serves as a valuable intermediate in the synthesis of complex organic molecules. Its bromo-thienyl and tetrazole functionalities offer diverse reaction possibilities for medicinal chemistry and materials science research.
Heterocyclic Chemistry Research
As a halogenated heterocycle, it is employed in studies focusing on the development of new heterocyclic scaffolds. Researchers can utilise its unique structure to explore structure-activity relationships in various chemical entities.
Pharmaceutical Building Block
The compound's structure is relevant for the construction of potential pharmaceutical agents. Its incorporation into larger molecules may lead to the discovery of novel therapeutic candidates.
| Molecular weight | 231.07 |
|---|---|
| Empirical formula | C5H3BrN4S |
| Boiling point | 157-158 °C |
| Density | 1.087 g/mL at 25 °C |
| Refractive index | n20/D 1.4640 |
| Concentration | 30% in DMF |



Hazard statements
- H226Flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
- H360D
Precautionary statements
- P201Obtain special instructions before use
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
- P308IF exposed or concerned
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 54 °C / 129.2 °F |
| Transport (UN / ADR) | UN 2265 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 61-10-20/21-36/37/38 |
| Safety statements (S) | 53-26-36/37-45 |
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 5-(5-Bromo-2-thienyl)-1H-tetrazole solution used for?
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This compound is primarily used as a building block in organic synthesis and heterocyclic chemistry research, with potential applications in the development of pharmaceutical agents.
What are the CAS number and formula for this product?
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The CAS number is 211943-12-3, and the empirical formula is C5H3BrN4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound as a 30% solution in DMF. TSS does not represent this product as USP/BP/EP or other pharmacopoeia grades; it is supplied for research and technical use.
What are the primary safety hazards associated with this chemical?
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This product carries a Danger signal word, with hazards including Flammable liquid and vapor (H226), causes skin irritation (H315), causes serious eye irritation (H319), harmful if inhaled (H332), may cause respiratory irritation (H335), and may damage fertility or the unborn child (H360D). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, is essential.
How is 5-(5-Bromo-2-thienyl)-1H-tetrazole solution packed, shipped, and exported?
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As a specialist global supplier, Tech Serve Solutions expertly handles the packing, shipping, and export of chemicals like this, adhering to all relevant international regulations for hazardous materials.
How can I request a sample or quote for this product?
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To request a sample or obtain a quote, please visit the Tech Serve Solutions website or contact our sales team directly with your inquiry.
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