5-Phenyl-1H-tetrazole
5-Phenyl-1H-tetrazole (CAS 18039-42-4, C7H6N4, MW 146.15) is a heterocyclic organic compound. It is primarily utilised as a building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. This compound serves as a valuable intermediate for the development of more complex molecules, finding utility in research and development settings for its tetrazole moiety, which can participate in various chemical transformations.

Organic Synthesis Intermediate
5-Phenyl-1H-tetrazole functions as a key building block in the synthesis of various organic compounds. Its tetrazole ring system makes it useful for introducing specific functionalities into target molecules during multi-step syntheses.
Heterocyclic Chemistry Research
This compound is employed in research laboratories for exploring novel heterocyclic structures. Its unique chemical properties are leveraged to create diverse molecular architectures with potential applications in medicinal chemistry and materials science.
Pharmaceutical Intermediate Development
As a precursor and intermediate, 5-Phenyl-1H-tetrazole can be used in the development pathway for potential pharmaceutical agents. Its structure provides a scaffold for further chemical modification to generate drug candidates.
| Molecular weight | 146.15 |
|---|---|
| Empirical formula | C7H6N4 |
| Assay | 99% |
| Melting point | 216 °C (dec.)(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
| Safety statements (S) | 36 |
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-Phenyl-1H-tetrazole used for?
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5-Phenyl-1H-tetrazole is primarily used as a building block in chemical synthesis, particularly in heterocyclic chemistry research and the development of pharmaceutical intermediates.
What is the CAS number and chemical formula for 5-Phenyl-1H-tetrazole?
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The CAS number is 18039-42-4 and the chemical formula is C7H6N4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Phenyl-1H-tetrazole with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
What are the safety precautions when handling 5-Phenyl-1H-tetrazole?
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5-Phenyl-1H-tetrazole is classified as harmful if swallowed (H302). When handling, use a dust mask type N95 (US), wear eyeshields, and use gloves. Ensure adequate ventilation.
How is 5-Phenyl-1H-tetrazole packed and shipped?
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5-Phenyl-1H-tetrazole is packed in compliance with international shipping regulations for hazardous materials. It is available for export globally.
How can I request a quote or sample of 5-Phenyl-1H-tetrazole?
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To request a quote or sample, please contact our sales team through the website or by phone, referencing the product name and CAS number.
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