5-Iodo-1-pentyne
5-Iodo-1-pentyne (CAS: 2468-55-5, C5H7I) is a valuable organic building block featuring a terminal alkyne and an iodo functional group. With a molecular weight of 194.01 g/mol, it serves as a versatile intermediate in various chemical syntheses. Its reactivity allows for diverse transformations, making it a key component in the development of complex organic molecules for research and industrial applications.

Organic Synthesis Intermediate
Utilised as a building block in organic synthesis for the preparation of more complex molecules. The terminal alkyne and iodo group offer distinct sites for chemical modification.
Pharmaceutical Research
Serves as a reagent in the development of novel pharmaceutical compounds. Its structure can be incorporated into potential drug candidates or used in the synthesis of biologically active molecules.
Material Science
Can be employed in the synthesis of functional materials. The alkyne moiety is amenable to click chemistry reactions, useful for creating polymers or modifying surfaces.
| Molecular weight | 194.01 |
|---|---|
| Empirical formula | C5H7I |
| Assay | ≥98.0% (GC) |
| Storage temperature | 2-8°C |


Hazard statements
- H225Highly flammable liquid and vapour
- H314Causes severe skin burns and eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Flash point | 8 °C / 46.4 °F |
|---|---|
| Transport (UN / ADR) | UN 2924 8(3) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-34 |
| Safety statements (S) | 26-36/37/39-45 |
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 5-Iodo-1-pentyne used for?
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5-Iodo-1-pentyne is primarily used as a versatile building block and intermediate in organic synthesis, particularly in pharmaceutical research and material science due to its terminal alkyne and iodo functionalities.
What are the CAS number and formula for 5-Iodo-1-pentyne?
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The CAS number for 5-Iodo-1-pentyne is 2468-55-5, and its empirical formula is C5H7I.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Iodo-1-pentyne with an assay of ≥98.0% (GC). We do not represent this product as USP, BP, or EP grade.
How should 5-Iodo-1-pentyne be handled and stored?
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5-Iodo-1-pentyne is a flammable liquid and causes severe skin burns and eye damage (H225, H314). It requires careful handling in a well-ventilated area, wearing appropriate protective equipment. Store at 2-8°C.
Is 5-Iodo-1-pentyne a controlled substance?
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Based on the provided data, there is no indication that 5-Iodo-1-pentyne is a controlled substance.
How is 5-Iodo-1-pentyne shipped and exported?
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5-Iodo-1-pentyne is shipped and exported as UN 2924, Hazard Class 8 (3), Packing Group II, indicating it is a corrosive liquid, flammable, n.o.s.
How can I request a sample or quote for 5-Iodo-1-pentyne?
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To request a sample or quote for 5-Iodo-1-pentyne, please contact our sales team through the website or directly via email or phone.
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