1,6-Heptadiyne
1,6-Heptadiyne (CAS: 2396-63-6), a terminal alkyne with the molecular formula C7H10 and a molecular weight of 92.14 g/mol, is a valuable organic building block. This compound features two terminal alkyne functionalities, making it highly reactive and suitable for diverse chemical synthesis applications. It is employed as a reagent in organic chemistry for creating complex molecular architectures and is a key intermediate in the development of novel materials and pharmaceuticals.
- Synonyms
- HC≡C(CH2)3C≡CH

Organic Synthesis
Serves as a versatile building block in organic synthesis due to its two terminal alkyne groups, enabling participation in various coupling reactions and cycloadditions.
Polymer Chemistry
Can be utilised in the synthesis of polymers and functional materials, leveraging the reactivity of the alkyne moieties for cross-linking or monomer development.
Medicinal Chemistry Research
Acts as an intermediate or scaffold in the research and development of new pharmaceutical agents, allowing for the introduction of specific functional groups.
Materials Science
Explored for applications in materials science, where its structure can be incorporated into novel organic materials with specific electronic or physical properties.
| Molecular weight | 92.14 |
|---|---|
| Linear formula | HC≡C(CH2)3C≡CH |
| Assay | 97% |
| Boiling point | 111.5 °C(lit.) |
| Density | 0.805 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.441(lit.) |
| Storage temperature | 2-8°C |

Hazard statements
- H225Highly flammable liquid and vapour
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 9 °C / 48.2 °F |
| Transport (UN / ADR) | UN 3295BF 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
| Safety statements (S) | 16-29-33 |
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 1,6-Heptadiyne primarily used for?
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1,6-Heptadiyne is primarily used as a versatile building block in organic synthesis, particularly in chemical synthesis, polymer chemistry, medicinal chemistry research, and materials science due to its reactive terminal alkyne groups.
What is the CAS number and chemical formula for 1,6-Heptadiyne?
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The CAS number for 1,6-Heptadiyne is 2396-63-6 and its linear formula is HC≡C(CH2)3C≡CH.
What grade and purity does Tech Serve Solutions supply for 1,6-Heptadiyne?
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Tech Serve Solutions supplies 1,6-Heptadiyne with an assay of 97%. This is a technical grade for research and laboratory use; TSS does not represent it as USP, BP, EP, or pharmacopoeia grade.
How should 1,6-Heptadiyne be handled and stored safely?
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1,6-Heptadiyne is a highly flammable liquid and vapour (H225). It requires careful handling in well-ventilated areas, away from ignition sources. Recommended personal protective equipment includes eyeshields, face shields, gloves, and appropriate respiratory protection. Store in a cool, dry, well-ventilated area at 2-8°C.
Is 1,6-Heptadiyne available for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 1,6-Heptadiyne, adhering to all relevant shipping regulations (UN 3295, BF 3 / PGII).
How can I request a quote or sample of 1,6-Heptadiyne?
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To request a quote or sample of 1,6-Heptadiyne, please use the contact form on our website or call our sales department, referencing the product name and CAS number (2396-63-6).
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