1-Amino-3-butyne
1-Amino-3-butyne (CAS: 14044-63-4; C4H7N) is a versatile organic compound with a molecular weight of 69.11 g/mol. Featuring both an amine and a terminal alkyne functional group, it serves as a valuable building block in organic synthesis. Its unique structure allows for diverse chemical transformations, making it a key intermediate in the development of pharmaceuticals and fine chemicals.
- IUPAC
- 3-Butyn-1-amine,3-Butynylamine,4-Amino-1-butyne

Organic Synthesis Intermediate
1-Amino-3-butyne is employed as a crucial intermediate in the synthesis of more complex organic molecules. Its dual functionality enables participation in a wide range of reactions, including cyclizations and coupling processes.
Pharmaceutical Research
This compound is utilised in the research and development of novel pharmaceutical agents. Its structure can be incorporated into drug candidates, contributing to the development of new therapeutic compounds.
Chemical Building Block
As a readily available building block, 1-Amino-3-butyne is essential for constructing diverse molecular architectures in academic and industrial research laboratories.
| Molecular weight | 69.11 |
|---|---|
| Empirical formula | C4H7N |
| Assay | 95% |
| Boiling point | 100-103 °C |
| Density | 0.844 g/mL at 25 °C |
| Refractive index | n20/D 1.448 |
| Storage temperature | 2-8°C |



Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- 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 | 10 °C / 50 °F |
|---|---|
| Transport (UN / ADR) | UN 2733 3/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-22-34 |
| 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 1-Amino-3-butyne used for?
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1-Amino-3-butyne is primarily used as a versatile building block in organic synthesis and is valuable in pharmaceutical research and the development of fine chemicals.
What are the CAS number and formula for 1-Amino-3-butyne?
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The CAS number for 1-Amino-3-butyne is 14044-63-4, and its chemical formula is C4H7N.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Amino-3-butyne with an assay of 95%. This product is not represented as USP, BP, or EP grade.
How should 1-Amino-3-butyne be handled safely?
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1-Amino-3-butyne is a flammable liquid and vapour (H225), harmful if swallowed (H302), and causes severe skin burns and eye damage (H314). Handle with extreme caution in a well-ventilated area, wearing appropriate personal protective equipment, including gloves, eye protection, and protective clothing. Keep away from heat, sparks, and open flames.
Is 1-Amino-3-butyne a controlled substance?
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The provided data does not indicate that 1-Amino-3-butyne is a controlled substance.
How is 1-Amino-3-butyne shipped and exported?
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Tech Serve Solutions is a global supplier and exporter of chemicals. Specific shipping and export details for 1-Amino-3-butyne can be provided upon request.
How can I request a sample or quote for 1-Amino-3-butyne?
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To request a sample or a quote for 1-Amino-3-butyne, please contact the Tech Serve Solutions sales team through our website or by phone.
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