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400890

Sigma-Aldrich

cis-2-Butene

≥99%

Synonym(s):

(2Z)-2-Butene, (Z)-2-Butene, Z-Butene, cis-1,2-Dimethylethylene, cis-2-Butylene

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About This Item

Linear Formula:
CH3CH=CHCH3
CAS Number:
590-18-1
Molecular Weight:
56.11
Beilstein/REAXYS Number:
1361341
EC Number:
209-673-7
MDL number:
MFCD00009294
UNSPSC Code:
12142100
PubChem Substance ID:
24864964
NACRES:
NA.22

vapor density

2 (vs air)

Quality Level

100

vapor pressure

1414 mmHg ( 21 °C)

assay

≥99%

form

gas

autoignition temp.

615 °F

expl. lim.

9.7 %

bp

3.7 °C (lit.)

mp

−139 °C (lit.)

SMILES string

[H]\C(C)=C(/[H])C

InChI

1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3-

InChI key

IAQRGUVFOMOMEM-ARJAWSKDSA-N

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Application

cis-2-Butene is an unsaturated olefinic hydrocarbon used as a precursor in the polymerization of gasoline. It is also used to synthesize butadiene and other aliphatic C4/C5 organic molecules. It is also employed as a cross-linking agent.

Packaging

Supplied in a Sure/Pac™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

also commonly purchased with this product

Product No.
Description
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hose barb

Product No.
Description
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Z146811

Hose adapter, brass

recommended

Product No.
Description
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regulator

Product No.
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pictograms

FlameGas cylinder
GHS02,GHS04

signalword

Danger

hcodes

H220,H280

Hazard Classifications

Flam. Gas 1 - Press. Gas Liquefied gas

Storage Class

2A - Gases

wgk_germany

WGK 3

flash_point_f

10.4 °F - closed cup

flash_point_c

-12 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)

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Certificates of Analysis (COA)

Lot/Batch Number
STBC4185V
STBC2401V
STBC1933V
STBC0901V
STBC0459V

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Basic organic chemicals
Polymer, 117-141 (2002)
Competition and miscibility of isodimorphism and their effects on band spherulites and mechanical properties of poly (butylene succinate-co-cis-butene succinate) unsaturated aliphatic copolyesters
Yu Y, et al.
Polymer, 150, 52-63 (2018)
J T Groves et al.
Progress in clinical and biological research, 274, 509-524 (1988-01-01)
A cytochrome P-450 LM2 reconstituted system mediated expoxidations of small terminal alkenes to the corresponding alkyloxiranes. This oxidation was accompanied by a stereoselective proton exchange of the E proton. Propene was oxidized in D2O to trans-3-deuterio-2-methyloxirane, and E-1-deuteriopropene was epoxidized
Duangkamol Gleeson
Journal of computer-aided molecular design, 22(8), 579-585 (2008-03-18)
In this study the results from a series of calculations are reported that probe the influence of the QM cluster size and the extended framework treatment in ONIOM calculations. This is done by comparing the differences in the structures and
Philip T M Carlsson et al.
Physical chemistry chemical physics : PCCP, 14(45), 15637-15640 (2012-10-24)
Recent studies have suggested that the reaction of stabilised Criegee Intermediates (CIs) with sulfur dioxide (SO(2)), leading to the formation of a carbonyl compound and sulfur trioxide, is a relevant atmospheric source of sulfuric acid. Here, the significance of this
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