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ChemicalBook--->CAS DataBase List--->21490-63-1

21490-63-1

21490-63-1 Structure

21490-63-1 Structure
IdentificationMore
[Name]

TRANS-2,3-EPOXYBUTANE
[CAS]

21490-63-1
[Synonyms]

TRANS-2,3-DIMETHYLOXIRANE
TRANS-2,3-EPOXYBUTANE
TRANS-2 3-EPOXYBUTANE (RACEMIC)
TRANS-2-BUTENE OXIDE
TRANS-BETA-BUTYLENE OXIDE
2,3-Butylene oxide (trans)
2,3-Dimethyl-oxirane (E)
3-dimethyl-trans-oxiran
3-epoxy-trans-butan
Butane, 2,3-epoxy-, trans-
trans-2-Butylene Oxide
trans-2-butyleneoxide
Oxirane, 2,3-dimethyl-, (2R,3R)-rel-(9CI)
trans-á-butylene oxide
trans-β-butylene oxide
trans-β-Butylene oxide, trans-2,3-Dimethyloxirane, trans-2-Butene oxide
trans-2,3-Epoxybutane, trans-2-Butene oxide
rel-(2R*,3R*)-2,3-Dimethyloxirane
rel-(2R*,3R*)-2,3-Epoxybutane
[EINECS(EC#)]

244-406-8
[Molecular Formula]

C4H8O
[MDL Number]

MFCD00005129
[Molecular Weight]

72.11
[MOL File]

21490-63-1.mol
Chemical PropertiesBack Directory
[Melting point ]

-85°C
[Boiling point ]

54-55°C
[density ]

0.807 g/mL at 20 °C(lit.)
[vapor pressure ]

3.83 psi ( 20 °C)
[refractive index ]

n20/D 1.373
[Fp ]

-26°C
[form ]

liquid
[color ]

Clear
[Specific Gravity]

0.804
[biological source]

synthetic
[Water Solubility ]

Soluble in water(95g/L).
[Sensitive ]

Moisture Sensitive
[BRN ]

79772
[LogP]

1.053 (est)
[CAS DataBase Reference]

21490-63-1(CAS DataBase Reference)
[EPA Substance Registry System]

Oxirane, 2,3-dimethyl-, (2R,3R)-rel- (21490-63-1)
Safety DataBack Directory
[Hazard Codes ]

F,Xi
[Risk Statements ]

R11:Highly Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves .
[RIDADR ]

UN 3271 3/PG 2
[WGK Germany ]

3
[RTECS ]

EK3855040
[F ]

21
[HazardClass ]

3
[PackingGroup ]

II
[HS Code ]

2910900090
Hazard InformationBack Directory
[Uses]

A higher order cuprate reacted with trans-2,3-epoxybutane a high yield both counted on the epoxide (96%) and on the haloalkane (85%). Enolate derived from trans-2,3-Epoxybutan has chiral recognition.
Spectrum DetailBack Directory
[Spectrum Detail]

TRANS-2,3-EPOXYBUTANE(21490-63-1)1HNMR
TRANS-2,3-EPOXYBUTANE(21490-63-1)13CNMR
TRANS-2,3-EPOXYBUTANE(21490-63-1)FT-IR
TRANS-2,3-EPOXYBUTANE(21490-63-1)Raman
TRANS-2,3-EPOXYBUTANE(21490-63-1)IR
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

trans-2,3-Epoxybutane, 97%(21490-63-1)
[Sigma Aldrich]

21490-63-1(sigmaaldrich)
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