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Merck
CN

254339

2-Butyne

99%

Synonym(s):

Crotonylene, Dimethylacetylene

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About This Item

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

11.47 psi ( 20 °C)

Quality Segment

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

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



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