1-Hexyne
1-Hexyne (CAS: 693-02-7) is a terminal alkyne with the molecular formula CH₃(CH₂)₃C≡CH and a molecular weight of 82.14 g/mol. This colourless liquid, with a refractive index of 1.399 at 20°C, serves as a valuable building block in organic synthesis. It is predominantly used in chemical research and for the preparation of more complex organic molecules, including pharmaceutical intermediates.
Organic Synthesis Intermediate
1-Hexyne is a key building block for creating diverse organic molecules. Its terminal alkyne functionality readily participates in various carbon-carbon bond-forming reactions, essential for constructing complex structures.
Research and Development
Utilised in academic and industrial laboratories for exploring new synthetic pathways and developing novel compounds. Its defined purity makes it suitable for sensitive research applications.
Pharmaceutical Intermediate Synthesis
Serves as a precursor in the multi-step synthesis of active pharmaceutical ingredients (APIs) and other biologically relevant molecules. It allows for the introduction of specific alkyne functionalities.
| Molecular weight | 82.14 |
|---|---|
| Linear formula | CH3(CH2)3C≡CH |
| Assay | ≥95.0% (GC) |
| Boiling point | 71-72 °C(lit.) |
| Density | 0.715 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.399(lit.)n20/D 1.399 |
| Vapour pressure | 253 mmHg (37.7 °C) |
| Melting point | −132 °C(lit.) |
| Impurities tested | ≤3% 1-bromo-butane (GC) |
Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P301IF SWALLOWED
- P305IF IN EYES
- P331Do NOT induce vomiting
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -20 °C / -4 °F |
| Transport (UN / ADR) | UN 3295BE 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-36/37/38-65 |
| Safety statements (S) | 16-26-36-62 |
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-Hexyne used for?
+
1-Hexyne is primarily used as a building block in organic synthesis and for research and development purposes, including the synthesis of pharmaceutical intermediates.
What are the CAS number and formula for 1-Hexyne?
+
The CAS number for 1-Hexyne is 693-02-7, and its molecular formula is CH₃(CH₂)₃C≡CH.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 1-Hexyne with an assay of ≥95.0% (GC), containing ≤3% 1-bromo-butane as an impurity. We do not represent this product as USP, BP, or EP grade.
How should 1-Hexyne be handled safely?
+
1-Hexyne is a highly flammable liquid and vapour (H225) and may be fatal if swallowed and enters airways (H304). It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, gloves, and use in a well-ventilated area, away from ignition sources.
How is 1-Hexyne packed, shipped, and exported?
+
1-Hexyne is shipped as UN 3295, Packaging Group II, under specific regulations for flammable liquids. Tech Serve Solutions exports globally, adhering to all international shipping and handling standards for hazardous materials.
How can I request a sample or quote for 1-Hexyne?
+
To request a sample or a quote for 1-Hexyne, please contact our sales department through the website or call us directly. Our team will be pleased to assist you.
▶ Related products
1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis
1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis