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254339

2-Butyne

Name: 2-Butyne
Brand: ALDRICH

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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Properties

vapor pressure

11.47 psi ( 20 °C)

Quality Segment

100

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

Description

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.

Signal Word

Danger

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 (personal protective equipment)

Eyeshields, Faceshields, Gloves

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