3-Amino-4,5-dihydro-1H-1-phenylpyrazole
3-Amino-4,5-dihydro-1H-1-phenylpyrazole (CAS: 3314-35-0, C9H11N3) is a valuable heterocyclic building block with a molecular weight of 161.20 g/mol. This compound serves as a key intermediate in chemical synthesis, particularly within the pyrazole chemical family. It is widely utilised in research and development for the creation of novel organic molecules. Tech Serve Solutions supplies this chemical with an assay of 97%.
- Synonyms
- C9H11N31-Phenyl-3-amino-4,5-dihydro-1H-pyrazole

Chemical Synthesis Intermediate
Utilised as a fundamental building block in organic synthesis for the construction of more complex molecular architectures. Its pyrazole core makes it a versatile starting material for medicinal chemistry and materials science research.
Research and Development
Employed in academic and industrial R&D laboratories for exploring new reaction pathways and developing novel chemical entities. Its reactivity profile allows for diverse functionalisation.
Heterocyclic Chemistry
A key component in the study and application of heterocyclic compounds, contributing to the development of compounds with potential biological activity or material properties.
| Molecular weight | 161.20 |
|---|---|
| Empirical formula | C9H11N3 |
| Assay | 97% |
| Melting point | 168-172 °C |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36 |
| Safety statements (S) | 26 |
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-4,5-dihydro-1H-1-phenylpyrazole used for?
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3-Amino-4,5-dihydro-1H-1-phenylpyrazole is primarily used as a building block in chemical synthesis and in research and development for creating novel organic molecules, especially within heterocyclic and pyrazole chemistry.
What is the CAS number and molecular formula for this compound?
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The CAS number is 3314-35-0 and the molecular formula is C9H11N3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Amino-4,5-dihydro-1H-1-phenylpyrazole with an assay of 97%. This is a technical grade material and is not represented as USP, BP, or EP.
How should 3-Amino-4,5-dihydro-1H-1-phenylpyrazole be handled safely?
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This compound is harmful if swallowed and causes serious eye irritation (H302, H319). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, faceshields, and gloves. In case of eye contact, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do.
How is 3-Amino-4,5-dihydro-1H-1-phenylpyrazole packed, shipped, and exported?
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As a global supplier, Tech Serve Solutions expertly handles the packing, shipping, and exporting of chemicals, adhering to all relevant regulations for safe and compliant international delivery.
How can I request a sample or quote for 3-Amino-4,5-dihydro-1H-1-phenylpyrazole?
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Please contact our sales team via the website or direct email to request a sample or a formal quotation for 3-Amino-4,5-dihydro-1H-1-phenylpyrazole.
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