1-Pentyne

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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; −4 °F; 253 K
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

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

2-Pentyne

References

v t e Alkynes

Ethyne ( C 2H 2 ) Propyne ( C 3H 4 ) Butyne ( C 4H 6 ) Pentyne ( C 5H 8 ) 3-Hexyne ( C 6H 10 ) Heptyne ( C 7H 12 ) Octyne ( C 8H 14 ) Nonyne ( C 9H 16 ) Decyne ( C 10H 18 ) Undecyne ( C 11H 20 )

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