3-Amino-5-(methylthio)pyrazole-4-carbonitrile
3-Amino-5-(methylthio)pyrazole-4-carbonitrile (CAS: 72760-85-1) is a heterocyclic organic compound with the molecular formula C5H6N4S and a molecular weight of 154.19 g/mol. This pyrazole derivative serves as a valuable building block in organic synthesis. Its structure features an aminopyrazole core with a methylthio substituent and a nitrile group, making it suitable for diverse chemical transformations and the construction of more complex molecular architectures.
- IUPAC
- 3-Amino-4-cyano-5-(methylthio)pyrazole,3-Amino-5-(methylthio)-1H-pyrazole-4-carbonitrile
- Synonyms
- 3-Amino-4-cyano-5-(methylthio)pyrazole,3-Amino-5-(methylthio)-1H-pyrazole-4-carbonitrile

Organic Synthesis Intermediate
This compound is utilised as a key intermediate in the synthesis of various organic molecules. The presence of the amino, nitrile, and methylthio groups allows for multiple reaction pathways.
Heterocyclic Chemistry
As a substituted pyrazole, it is employed in the development of novel heterocyclic compounds. These can find applications in diverse fields, including medicinal chemistry and materials science.
Research and Development
Researchers utilise this chemical in laboratory settings for exploring new synthetic routes and developing novel chemical entities. It is a useful reagent for academic and industrial R&D projects.
| Molecular weight | 154.19 |
|---|---|
| Empirical formula | C5H6N4S |
| Melting point | 146-152 °C |

Hazard statements
- H302Harmful if swallowed
| 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 3-Amino-5-(methylthio)pyrazole-4-carbonitrile used for?
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3-Amino-5-(methylthio)pyrazole-4-carbonitrile is primarily used as a building block in organic synthesis and in research and development for creating novel heterocyclic compounds.
What is the CAS number and molecular formula for this compound?
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The CAS number is 72760-85-1, and the molecular formula is C5H6N4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product typically as a technical or research grade chemical. We do not represent it as meeting USP, BP, or EP pharmacopoeial standards unless explicitly stated.
How should 3-Amino-5-(methylthio)pyrazole-4-carbonitrile be handled?
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This compound is classified with GHS07 and a Warning signal word, with hazard statement H302 (Harmful if swallowed). Handle with appropriate personal protective equipment in a well-ventilated area to avoid ingestion, skin contact, and inhalation.
Is this product available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 3-Amino-5-(methylthio)pyrazole-4-carbonitrile, to customers worldwide.
How can I request a sample or quote?
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To request a sample or obtain a quotation for 3-Amino-5-(methylthio)pyrazole-4-carbonitrile, please contact our sales team via the website or direct email, specifying your requirements.
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