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254339

Sigma-Aldrich

2-Butyne

99%

Synonym(s):
Dimethylacetylene, Crotonylene
Linear Formula:
CH3C≡CCH3
CAS Number:
Molecular Weight:
54.09
Beilstein:
1361340
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

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

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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.

Packaging

5, 25 g in ampule

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

-13.0 °F - closed cup

Flash Point(C)

-25 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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