2-Pentyne

2-Pentyne


IUPAC name Pent-2-yne
Other names Ethylmethylacetylene, 1-Ethyl-2-methylacetylene
Identifiers
CAS number	627-21-4
PubChem	12310
ChemSpider	11807^Y
Jmol-3D images	Image 1 Image 2
SMILES CC#CCC C(#CCC)C
InChI InChI=1S/C5H8/c1-3-5-4-2/h3H2,1-2H3^Y Key: NKTDTMONXHODTI-UHFFFAOYSA-N^Y InChI=1/C5H8/c1-3-5-4-2/h3H2,1-2H3
Properties
Molecular formula	C₅H₈
Molar mass	68.12
Density	0.71 g/mL
Melting point	−109 °C
Boiling point	56 to 57 °C
Hazards
Main hazards	Flammable Liquid
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

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

References

Alkynes

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