Home Categories Chemical Reagents 2-Butyne
A1607812

2-Butyne , >97.0%(GC) , 503-17-3

Synonym(s):
Crotonylene;Dimethylacetylene

CAS NO.:503-17-3

Empirical Formula: C4H6

Molecular Weight: 54.09

MDL number: MFCD00009275

EINECS: 207-962-2

Update time: 2022-07-08

PRODUCT Properties

Melting point: -32 °C
Boiling point: 27 °C(lit.)
Density  0.691 g/mL at 25 °C(lit.)
vapor pressure  11.47 psi ( 20 °C)
refractive index  n20/D 1.393(lit.)
Flash point: -25 °C
storage temp.  2-8°C
form  Liquid
Specific Gravity 0.691
color  Clear colorless to light yellow
Water Solubility  Not miscible in water.
BRN  1361340
CAS DataBase Reference 503-17-3(CAS DataBase Reference)
EPA Substance Registry System 2-Butyne (503-17-3)

Description and Uses

2-Butyne is used to synthesize alkylated hydroquinones in the total synthesis of Vitamin E. It is also used as pharmaceutical intermediates.

Safety

Symbol(GHS) 
GHS02,GHS07
Signal word  Danger
Hazard statements  H224-H315-H319-H335
Precautionary statements  P210-P302+P352-P305+P351+P338-P403+P233
Hazard Codes  F+,Xi
Risk Statements  12-36/37/38
Safety Statements  16-26-36
RIDADR  UN 1144 3/PG 1
WGK Germany  3
RTECS  GQ7210000
TSCA  Yes
HazardClass  3
PackingGroup  I
HS Code  29012990

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