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254339

2-Butyne

99%

Synonym(s):

Crotonylene, Dimethylacetylene

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About This Item

Linear Formula:
CH3C≡CCH3
CAS Number:
503-17-3
Molecular Weight:
54.09
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24855377
EC Number:
207-962-2
Beilstein/REAXYS Number:
1361340
MDL number:
MFCD00009275
Assay:
99%
Form:
liquid
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vapor pressure

11.47 psi ( 20 °C)

assay

99%

form

liquid

refractive index

n20/D 1.393 (lit.)

bp

27 °C (lit.)

mp

−32 °C (lit.)

density

0.691 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CC#CC

InChI

1S/C4H6/c1-3-4-2/h1-2H3

InChI key

XNMQEEKYCVKGBD-UHFFFAOYSA-N

General description

The ion-molecule reaction of the aromatic distonic N-methyl-pyridinium-4-yl radical cation with 2-butyne has been investigated using ion trap mass spectrometry.

Application

2-Butyne has been used in preparation of THF-free metallacyclobutene complexes.

signalword

Danger

pictograms

FlameExclamation mark
GHS02,GHS07

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

-13.0 °F - closed cup

flash_point_c

-25 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX5384
MKCT2889
MKCQ7448
MKBZ0165V
MKBX3219V

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Living polymerization of 2-butyne using a well-characterized tantalum catalyst.
Wallace KC, et al.
Organometallics, 8(3), 644-654 (1989)
C J Kees-Jan Weststrate et al.
Nature communications, 11(1), 750-750 (2020-02-08)
Facile C-C bond formation is essential to the formation of long hydrocarbon chains in Fischer-Tropsch synthesis. Various chain growth mechanisms have been proposed previously, but spectroscopic identification of surface intermediates involved in C-C bond formation is scarce. We here show
Oleg G Salnikov et al.
Chemical science, 8(3), 2426-2430 (2017-04-30)
Mechanistic insight into the semihydrogenation of 1-butyne and 2-butyne on Cu nanoparticles supported on partially dehydroxylated silica (Cu/SiO
View All Related Papers

Global Trade Item Number

SKUGTIN
254339-5G04061825998671
254339-25G04061833431726