254339

2-Butyne

99%

• Synonym(s): Crotonylene, Dimethylacetylene
• Linear Formula: CH₃C≡CCH₃
• CAS Number: 503-17-3
• Molecular Weight: 54.09
• Beilstein: 1361340
• EC Number: 207-962-2
• MDL number: MFCD00009275
• UNSPSC Code: 12352100
• PubChem Substance ID: 24855377
• NACRES: NA.22

Properties

• vapor pressure: 11.47 psi ( 20 °C)
• Quality Level: 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.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H224,H315,H319,H335
• Precautionary Statements: P210 - P302 + P352 - P305 + P351 + P338 - P403 + P233
• 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