Pent-2-yne

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Names

[ CAS No. ]:
627-21-4

[ Name ]:
Pent-2-yne

[Synonym ]:
1-Ethyl-2-methylacetylene
MFCD00009380
Ethylmethylacetylene
Pent-2-in
2-Pentyne
EINECS 210-989-2
trans 2-pentyne

Chemical & Physical Properties

[ Density]:
0.7±0.1 g/cm3

[ Boiling Point ]:
56.7±3.0 °C at 760 mmHg

[ Melting Point ]:
−109 °C(lit.)

[ Molecular Formula ]:
C5H8

[ Molecular Weight ]:
68.117

[ Flash Point ]:
-28.1±11.2 °C

[ Exact Mass ]:
68.062599

[ LogP ]:
1.99

[ Vapour Pressure ]:
237.4±0.0 mmHg at 25°C

[ Index of Refraction ]:
1.407

[ Storage condition ]:
Flammables area

MSDS

Click to get detail MSDS

Safety Information

[ Hazard Codes ]:
F: Flammable;Xi: Irritant;

[ Risk Phrases ]:
R11

[ Safety Phrases ]:
S16-S26-S36/37/39

[ RIDADR ]:
UN 3295 3/PG 2

[ WGK Germany ]:
3

[ Packaging Group ]:
II

[ Hazard Class ]:
3

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 3,3-dichloropentane
  • Pentane, 2,3-dibromo-
  • Pent-1-yne
  • 3,3-Dimethyl-1-butene
  • 2-methylbut-1-en-1-yl trifluoromethanesulfonate
  • Isobutylene
  • Diethyl sulfate
  • Allene
  • cis-1-chloro-1-butene
  • 1-chloro-1-butene

DownStream

  • 1,3-Pentadiene
  • CIS-2-PENTENE
  • Pent-1-ene
  • But-2-yne
  • Hex-3-yne
  • Pentan-2-one
  • 3-Pentanone
  • 2-Pentene, (2E)-
  • Pentane
  • 2,2-dichlorobutanal

Related Compounds

  • 1-iodopent-2-yne
  • 4-bromopent-2-yne
  • 5-aminopent-2-yne
  • 5-bromopent-2-yne
  • 1-bromopent-2-yne
  • 1-ethoxypent-2-yne
  • N,N-dimethyl-3-[3-({[6-(trifluoromethyl)pyridin-2-yl]oxy}methyl)pyrrolidine-1-carbonyl]aniline
  • 2-({1-[(2,5-Dimethoxyphenyl)methyl]piperidin-4-yl}oxy)-5-methylpyrimidine
  • 3-(4-{[4-(4-Phenylpiperazin-1-yl)but-2-yn-1-yl]oxy}piperidin-1-yl)pyrazine-2-carbonitrile
  • 1-(2,4-Dimethoxyphenyl)-3-{[1-(thiophen-3-yl)cyclopropyl]methyl}urea
  • 1-[5-(6-Cyclopropylpyridazin-3-yl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-2-phenoxyethan-1-one
  • 2-benzyl-5-{1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}-octahydropyrrolo[3,4-c]pyrrole
  • 3-(3,5-dimethyl-1H-pyrazol-1-yl)-6-[4-(5-methyl-1,3,4-thiadiazol-2-yl)piperazin-1-yl]pyridazine
  • 4-(3,5-dimethyl-1H-pyrazol-1-yl)-6-[4-(5-methylpyrimidin-2-yl)piperazin-1-yl]pyrimidine
  • N,N-dimethyl-4-{[2-(3-methylphenoxy)acetamido]methyl}piperidine-1-carboxamide
  • N-methyl-N-{5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}-1-(pyrazin-2-yl)azetidin-3-amine
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