1-Pentyne

1-Pentyne^[1]


IUPAC name Pent-1-yne
Other names Propylacetylene
Identifiers
CAS number	627-19-0^Y
PubChem	12309
ChemSpider	11806^Y
ChEMBL	CHEMBL16262^Y
Jmol-3D images	Image 1
SMILES C#CCCC
InChI InChI=1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3^Y Key: IBXNCJKFFQIKKY-UHFFFAOYSA-N^Y InChI=1/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3 Key: IBXNCJKFFQIKKY-UHFFFAOYAX
Properties
Molecular 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
Solubility in water	Insoluble
Hazards
Main hazards	Flammable Liquid
Flash point	-20 °C
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

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

References

Alkynes

Ethyne ( C₂H₂ ) • Propyne ( C₃H₄ ) • Butyne ( C₄H₆ ) • Pentyne ( C₅H₈ ) • Hexyne ( C₆H₁₀ ) • Heptyne ( C₇H₁₂ ) • Octyne ( C₈H₁₄ ) • Nonyne ( C₉H₁₆ ) • Decyne ( C₁₀H₁₈ ) • Undecyne ( C₁₁H₂₀ )