2-Butyne

ALDRICH/254339 - 99%

Synonym: Crotonylene; Dimethylacetylene

CAS Number: 503-17-3
Empirical Formula (Hill Notation): C₄H₆
Molecular Weight: 54.09
EC Number: 207-962-2
MDL Number: MFCD00009275
Linear Formula: CH₃C≡CCH₃
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-254339-5G	5 g	$70.10 1/EA		Add To Favorites
45-254339-25G	25 g	$237.00 1/EA		Add To Favorites

FT-IR Spectra for Crotonylene.

Properties
Descriptions
Safety Info.
Basic Data

assay	99%
bp	27 °C (lit.)
density	0.691 g/mL at 25 °C (lit.)
form	liquid
InChI	1S/C4H6/c1-3-4-2/h1-2H3
InChI key	XNMQEEKYCVKGBD-UHFFFAOYSA-N
mp	−32 °C (lit.)
Quality Level	100
refractive index	n20/D 1.393 (lit.)
SMILES string	CC#CC
storage temp.	2-8°C
vapor pressure	11.47 psi ( 20 °C)

Application:	2-Butyne has been used in preparation of THF-free metallacyclobutene complexes.
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.
Packaging:	5, 25 g in ampule

Symbol	GHS02,GHS07
Signal word	Danger
Hazard statements	H224 - H315 - H319 - H335
Precautionary statements	P210 - P302 + P352 - P305 + P351 + P338 - P403 + P233
Hazard Codes	F+,Xi
Risk Statements	12-36/37/38
Safety Statements	16-26-36
RIDADR	UN1144 - class 3 - PG 1 - Crotonylene
WGK Germany	WGK 3
Flash Point(F)	-13.0 °F - closed cup
Flash Point(C)	-25 °C - closed cup

Purity	99%
bp	27 °C (lit.)
mp	−32 °C (lit.)
Density	0.691 g/mL at 25 °C (lit.)
Refractive Index	n20/D 1.393 (lit.)
Storage Temp.	2-8°C
UNSPSC	12352100

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