4-Phenylimidazole-2-thiol
4-Phenylimidazole-2-thiol (CAS 6857-34-7; C9H8N2S) is a heterocyclic organic compound with a molecular weight of 176.24 g/mol. As a versatile building block in chemical synthesis, it is particularly valuable for creating more complex molecular structures. This thiol derivative is primarily utilised in research and development settings for the synthesis of novel compounds within the pharmaceutical and material science sectors.
- IUPAC
- 1,3-Dihydro-4-phenyl-2H-imidazole-2-thione,2-Mercapto-4-phenylimidazole
- Synonyms
- 1,3-Dihydro-4-phenyl-2H-imidazole-2-thione2-Mercapto-4-phenylimidazole

Chemical Synthesis Intermediate
Utilised as a key intermediate in the synthesis of various organic molecules. Its imidazole and thiol functionalities offer versatile reaction sites for building complex structures.
Heterocyclic Chemistry Research
A valuable reagent for researchers exploring novel heterocyclic compounds. Its specific structure lends itself to the development of new chemical entities with potential biological activities.
Material Science Applications
Investigated for its potential in the development of new materials, owing to its unique chemical properties derived from the phenyl, imidazole, and thiol groups.
| Molecular weight | 176.24 |
|---|---|
| Empirical formula | C9H8N2S |
| Assay | 97% |
| Melting point | 269-274 °C |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Water hazard class (WGK, DE) | 1 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| 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-Phenylimidazole-2-thiol primarily used for?
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4-Phenylimidazole-2-thiol is primarily used as a building block in chemical synthesis and for research into novel heterocyclic compounds.
What is the CAS number and formula for 4-Phenylimidazole-2-thiol?
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The CAS number is 6857-34-7, and the empirical formula is C9H8N2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Phenylimidazole-2-thiol with an assay of 97%. We do not represent this product as USP, BP, EP or pharmacopoeia grade.
What are the main hazards associated with 4-Phenylimidazole-2-thiol?
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This compound is classified as harmful if swallowed and causes serious eye damage (GHS05, GHS07). Appropriate personal protective equipment, including eye protection, should be worn when handling. Refer to the Safety Data Sheet for full details.
Is 4-Phenylimidazole-2-thiol a controlled substance?
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The provided data does not indicate that 4-Phenylimidazole-2-thiol is a controlled substance.
How is 4-Phenylimidazole-2-thiol packed and shipped?
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As a global supplier, Tech Serve Solutions exports chemicals worldwide, adhering to all relevant transport regulations. Specific packing details are available upon request.
How can I request a quote or sample?
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To request a quote or sample of 4-Phenylimidazole-2-thiol, please contact our sales team through the website or by phone.
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