Synonyms: Crotonylene; Dimethylacetylene
CAS Number: 503-17-3
Formula: C4H6
Formula Weight: 54.09
Linear Formula: CH3C///CCH3
MDL No.: MFCD00009275
Purity: 0.99
Boiling Point: 27 C(lit.)
Melting Point: -32 C (lit.)
Density: 0.691 g/mL at 25 C(lit.)
Refractive Index: n20/D 1.393(lit.)
Storage: 2-8C
Beilstein Registry Number: 1361340
EC Number: 207-962-2
UNSPSC Code: 12352100
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.
RIDADR: UN1144 - class 3 - PG 1 - Crotonylene
WGK Germany: 3
Flash Point(F): -13 F
Flash Point(C): -25 C
R Codes: 12-36/37/38
S Codes: 16-26-36
IOD Codes: F+,Xi
Symbol: GHS02, GHS07
Signal Word: Danger
Hazard Statements: H224-H315-H319-H335
Precautionary statements: P210-P261-P305 + P351 + P338