But-2-yne

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Names

[ CAS No. ]:
503-17-3

[ Name ]:
But-2-yne

[Synonym ]:
2-Butyne
Dimethyl acetylene
1,2-dimethylvinylene
Dimethylacetylene
UN1144
MFCD00009275
EINECS 207-962-2
Crotonylene
1-methyl-1-propynyl

Chemical & Physical Properties

[ Density]:
0.7±0.1 g/cm3

[ Boiling Point ]:
25.6±3.0 °C at 760 mmHg

[ Melting Point ]:
-32 °C

[ Molecular Formula ]:
C4H6

[ Molecular Weight ]:
54.090

[ Flash Point ]:
-48.5±11.2 °C

[ Exact Mass ]:
54.046951

[ LogP ]:
1.46

[ Vapour Pressure ]:
745.1±0.0 mmHg at 25°C

[ Index of Refraction ]:
1.393

[ Storage condition ]:
2-8°C

MSDS

Click to get detail MSDS

Safety Information

[ Hazard Codes ]:
F+,Xi

[ Risk Phrases ]:
R12;R36/37

[ Safety Phrases ]:
S16-S26-S36

[ RIDADR ]:
UN 1144 3/PG 1

[ WGK Germany ]:
3

[ RTECS ]:
GQ7210000

[ Packaging Group ]:
I

[ Hazard Class ]:
3

Synthetic Route

Click to get detail synthetic route

Related Compounds

  • but-2-yne
  • but-2-ynenitrile
  • but-2-yne-1,1-diol
  • but-2-yne-1,4-diol
  • but-2-yne-1,4-diol
  • 1,4-diiodobut-2-yne
  • tert-butyl N-[2-(1-hydroxycyclobutyl)ethyl]carbamate
  • tert-butyl N-[2-(3-methyloxetan-3-yl)ethyl]carbamate
  • 1-(1-Isocyanatocyclopropyl)-4-(2-methylpropyl)benzene
  • methyl 5-[(1S)-1-hydroxy-3-methoxy-3-oxopropyl]furan-2-carboxylate
  • 2-(6-Methoxynaphthalen-2-yl)propan-2-amine
  • rac-(3R,4R)-4-methyl-1-(propan-2-yl)pyrrolidine-3-carboxylic acid
  • 1-Acetyl-3-aminopyrrolidine-3-carboxylic acid
  • 1-Bromo-2-fluoro-5-iodo-4-methoxy-benzene
  • 3-Amino-1-(2-nitrobenzenesulfonyl)pyrrolidine-3-carboxylic acid
  • 3-Amino-1-(4-nitrobenzenesulfonyl)pyrrolidine-3-carboxylic acid
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