N-(4-Pentynyl)phthalimide
N-(4-Pentynyl)phthalimide (CAS: 6097-07-0) is an organic compound with the molecular formula C13H11NO2. This white to off-white crystalline solid serves as a valuable building block in organic synthesis, particularly for introducing protected alkyne functionalities into molecules. Its structure, featuring a phthalimide group and a terminal alkyne, makes it useful in the construction of more complex organic structures and pharmaceutical intermediates.
- IUPAC
- 1-Phthalimido-4-pentyne,5-Phthalimido-1-pentyne

Organic Synthesis Intermediate
N-(4-Pentynyl)phthalimide is utilised as a key intermediate in multi-step organic syntheses. The terminal alkyne can undergo various coupling reactions, while the phthalimide group acts as a nitrogen protecting group that can be selectively cleaved.
Building Block for Complex Molecules
The compound's distinct functional groups allow for its incorporation into a wide range of complex molecular architectures. It is frequently employed in the synthesis of novel organic compounds and potential pharmaceutical candidates.
Research and Development
In research laboratories, N-(4-Pentynyl)phthalimide is used in exploratory chemistry to develop new synthetic methodologies and to investigate novel chemical entities.
| Molecular weight | 213.23 |
|---|---|
| Empirical formula | C13H11NO2 |
| Assay | 97% |
| Melting point | 87-91 °C(lit.) |

Hazard statements
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36-43 |
| 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 N-(4-Pentynyl)phthalimide used for?
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N-(4-Pentynyl)phthalimide is primarily used as a building block and intermediate in organic synthesis for the construction of complex organic molecules and pharmaceutical intermediates.
What is the CAS number and molecular formula for N-(4-Pentynyl)phthalimide?
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The CAS number is 6097-07-0, and the molecular formula is C13H11NO2.
What grade and purity does Tech Serve Solutions supply for N-(4-Pentynyl)phthalimide?
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Tech Serve Solutions supplies N-(4-Pentynyl)phthalimide with an assay of 97%. We do not represent this product as USP, BP, EP or other pharmacopoeia grades.
What are the main safety concerns when handling N-(4-Pentynyl)phthalimide?
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N-(4-Pentynyl)phthalimide is classified as a Warning substance. It can cause skin irritation and serious eye irritation (H317, H319). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, face shields, and gloves, should be used.
How is N-(4-Pentynyl)phthalimide typically packed, shipped, and exported?
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N-(4-Pentynyl)phthalimide is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations for fine chemicals.
How can I request a sample or quote for N-(4-Pentynyl)phthalimide?
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To request a sample or quote for N-(4-Pentynyl)phthalimide, please contact our sales team via the website or your dedicated account manager.
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