1-Pentyne

1-Pentyne^[1]

Names
IUPAC name Pent-1-yne
Other names Propylacetylene
Identifiers
CAS Number	627-19-0
ChEMBL	ChEMBL16262
ChemSpider	11806
Jmol interactive 3D	Image
PubChem	12309
InChI InChI=1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3 Key: IBXNCJKFFQIKKY-UHFFFAOYSA-N InChI=1/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3 Key: IBXNCJKFFQIKKY-UHFFFAOYAX
SMILES C#CCCC
Properties
Chemical formula	C5H8
Molar mass	68.12
Appearance	Clear, colorless liquid
Density	0.691 g/mL
Melting point	−106 to −105 °C
Boiling point	40.2 °C (104.4 °F; 313.3 K)
Solubility in water	Insoluble
Hazards
Main hazards	Flammable Liquid
Flash point	−20 °C (−4 °F; 253 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

1-Pentyne, an organic compound, is a terminal alkyne. It is an isomer of 2-pentyne, an internal alkyne.

2-Pentyne

References

1. 1-Pentyne at Sigma-Aldrich

External links

• NIST Chemistry WebBook page for 1-pentyne