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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:
1361341
EC Number:
209-673-7
MDL number:
MFCD00009294
UNSPSC Code:
12142100
PubChem Substance ID:
24864964
NACRES:
NA.22

vapor density

2 (vs air)

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
Pricing

hose barb

Product No.
Description
Pricing

Z146811

Hose adapter, brass

recommended

Product No.
Description
Pricing

regulator

Product No.
Description
Pricing

Pictograms

FlameGas cylinder
GHS02,GHS04

Signal Word

Danger

Hazard Statements

H220,H280

Precautionary Statements

P210 - P410 + P403

Hazard Classifications

Flam. Gas 1 - Press. Gas Liquefied gas

Storage Class Code

2A - Gases

WGK

WGK 3

Flash Point(F)

10.4 °F - closed cup

Flash Point(C)

-12 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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)
T Sawamura et al.
Radiation protection dosimetry, 103(2), 117-124 (2003-02-21)
A device able to trap a liquid droplet in a host liquid in a metastable (superheated) state was developed for a better understanding of the operational principles and for an extension of the application of superheated drop detectors (SDDs). Droplets
Fumitoshi Shibahara et al.
Bioorganic & medicinal chemistry letters, 12(14), 1825-1827 (2002-06-28)
A new class of polymer-supported (R,S)-BINAPHOS 1e in which the parent BINAPHOS has two alkoxy-substituents at the 3-positions of the phenyls, has been synthesised. Using its Rh(I) complex, asymmetric hydroformylation of olefins proceeded with higher enantioselectivity in some cases compared
Franz Worek et al.
Archives of toxicology, 86(9), 1379-1386 (2012-03-23)
The reactivation of organophosphorus compound (OP)-inhibited acetylcholinesterase (AChE) by oximes is inadequate in case of different OP nerve agents. This fact led to the synthesis of numerous novel oximes by different research groups in order to identify more effective reactivators.
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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