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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:
Molecular Weight:
56.11
Beilstein:
1361341
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22

vapor density

2 (vs air)

Quality Level

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

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Pictograms

FlameGas cylinder

Signal Word

Danger

Hazard Statements

Precautionary Statements

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
Nadiya Bakhiya et al.
Archives of toxicology, 84(7), 563-578 (2010-03-20)
Furan is formed during commercial or domestic thermal treatment of food. The initial surveys of furan concentrations in heat-treated foods, published by European and US authorities, revealed the presence of relatively high furan levels in coffee, sauces, and soups. Importantly
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
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.

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