4-Phenylpiperidine
4-Phenylpiperidine (CAS: 771-99-3), with the molecular formula C11H15N and a molecular weight of 161.24 g/mol, is a key heterocyclic building block. It is widely employed in chemical synthesis for the development of complex organic molecules. Its characteristic piperidine ring functionalised with a phenyl group makes it a valuable intermediate in various research and industrial applications, particularly within the pharmaceutical sector for the creation of novel compounds.

Pharmaceutical Intermediate
Serves as a crucial intermediate in the synthesis of active pharmaceutical ingredients (APIs). Its structural motif is found in various drug candidates targeting diverse therapeutic areas.
Organic Synthesis Reagent
Utilised as a versatile building block in complex organic synthesis. It enables the construction of novel molecular architectures for research and development purposes.
Chemical Research
Employed in academic and industrial research laboratories for exploring new chemical reactions and developing novel compounds with potential biological activity.
| Molecular weight | 161.24 |
|---|---|
| Empirical formula | C11H15N |
| Assay | 97% |
| Melting point | 61-65 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37 |
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-Phenylpiperidine used for?
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4-Phenylpiperidine is primarily used as a building block in chemical synthesis, particularly in the pharmaceutical industry for the development of new drug candidates and other complex organic molecules.
What is the CAS number and molecular formula for 4-Phenylpiperidine?
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The CAS number for 4-Phenylpiperidine is 771-99-3, and its molecular formula is C11H15N.
What grade and purity does Tech Serve Solutions supply for 4-Phenylpiperidine?
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Tech Serve Solutions supplies 4-Phenylpiperidine with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the main safety hazards associated with 4-Phenylpiperidine?
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4-Phenylpiperidine is classified with GHS07 symbol and 'Warning' signal word. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask, eyeshields, and gloves, should be used.
How is 4-Phenylpiperidine packed and shipped?
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As a global supplier and exporter, Tech Serve Solutions ensures that 4-Phenylpiperidine is packed and shipped in accordance with all relevant international regulations for chemical transport.
How can I request a sample or quote for 4-Phenylpiperidine?
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To request a sample or quote for 4-Phenylpiperidine, please contact our sales department through the website or via email, providing your specific requirements.
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