1-Phenyl-2-pyrrolidinone
1-Phenyl-2-pyrrolidinone (CAS: 4641-57-0, Formula: C10H11NO) is a heterocyclic organic compound with a molecular weight of 161.20 g/mol. This white to off-white crystalline solid, with a melting point typically between 67-69 °C, is primarily utilised as a versatile building block in chemical synthesis. Its pyrrolidine ring structure makes it valuable for the preparation of more complex molecules, particularly in the fields of organic chemistry and materials science.

Chemical Synthesis Intermediate
1-Phenyl-2-pyrrolidinone serves as a key intermediate in the synthesis of various organic compounds. Its functional groups allow for diverse chemical transformations, making it a valuable precursor in multi-step synthetic routes.
Research and Development
This compound is frequently employed in research laboratories for the development of novel materials and chemical entities. It provides a foundation for exploring new reactions and designing molecules with specific properties.
Heterocyclic Compound Synthesis
Due to its pyrrolidinone core, 1-Phenyl-2-pyrrolidinone is specifically used in the construction of other heterocyclic systems. These structures are common in pharmaceuticals and agrochemicals.
| Molecular weight | 161.20 |
|---|---|
| Empirical formula | C10H11NO |
| Assay | 99% |
| Boiling point | 123 °C/0.2 mmHg(lit.) |
| Melting point | 67-69 °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) | 26-37/39 |
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 1-Phenyl-2-pyrrolidinone used for?
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1-Phenyl-2-pyrrolidinone is used as a building block and intermediate in chemical synthesis, particularly for the creation of other heterocyclic compounds and in research and development.
What are the CAS number and formula for 1-Phenyl-2-pyrrolidinone?
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The CAS number for 1-Phenyl-2-pyrrolidinone is 4641-57-0, and its empirical formula is C10H11NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Phenyl-2-pyrrolidinone with a minimum assay of 99%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety considerations when handling 1-Phenyl-2-pyrrolidinone?
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1-Phenyl-2-pyrrolidinone is classified with GHS07 symbol and a Warning signal word. It can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment including a dust mask (N95), eyeshields, and gloves should be used. Handle in a well-ventilated area.
How is 1-Phenyl-2-pyrrolidinone packed and shipped?
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1-Phenyl-2-pyrrolidinone is carefully packed to ensure safe transit and is available for export globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or a sample of 1-Phenyl-2-pyrrolidinone, please contact our sales team through the website or by telephone.
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