363359
2-Butene, mixture of cis and trans
≥99%
Synonym(s):
β-Butylene, Pseudobutylene
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About This Item
Linear Formula:
CH3CH=CHCH3
CAS Number:
Molecular Weight:
56.11
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-452-9
Beilstein/REAXYS Number:
1718755
MDL number:
Assay:
≥99%
vapor pressure
1.9 mmHg ( 0 °C)
Quality Segment
assay
≥99%
expl. lim.
9.3 %
bp
1 °C (lit.)
mp
−140 °C (lit.)
SMILES string
C\C=C\C
InChI
1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3+
InChI key
IAQRGUVFOMOMEM-ONEGZZNKSA-N
General description
2-Butene is an alkene. All-silica zeolite RUB-41, containing 8- and 10-membered rings, is reported to be capable of separating trans-2-butene and cis-2-butene from 1-butene. Asymmetric gydrozirconation of cis- and trans-2-butene is reported. Stereospecific addition of methylene to trans-2-butene is reported to afford trans-1,2dimethylcyclopropane while similar addition to cis-2-butene affords cis-1,2dimethylcyclopropane.
Other Notes
Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended.
Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Flam. Gas 1 - Press. Gas Liquefied gas
Storage Class
2A - Gases
WGK
nwg
Flash Point (°F)
-29.2 °F - closed cup
Flash Point (°C)
-34 °C - closed cup
PPE (personal protective equipment)
Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)
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