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W527408

Sigma-Aldrich

trans-2,3-Epoxybutane

Synonym(s):

trans-β-Butylene oxide, trans-2,3-Dimethyloxirane, trans-2-Butene oxide

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About This Item

Empirical Formula (Hill Notation):
C4H8O
CAS Number:
21490-63-1
Molecular Weight:
72.11
Beilstein:
79772
EC Number:
244-406-8
MDL number:
MFCD00005129
UNSPSC Code:
12164502
PubChem Substance ID:
24902114

biological source

synthetic

Quality Level

400

vapor pressure

3.83 psi ( 20 °C)

refractive index

n20/D 1.3730 (lit.)

bp

54-55 °C (lit.)

density

0.804 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

SMILES string

C[C@H]1O[C@@H]1C

InChI

1S/C4H8O/c1-3-4(2)5-3/h3-4H,1-2H3/t3-,4-/m1/s1

InChI key

PQXKWPLDPFFDJP-QWWZWVQMSA-N

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Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225,H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

-16.6 °F - closed cup

Flash Point(C)

-27 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
18412DA

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Emily C Minerath et al.
Environmental science & technology, 43(5), 1386-1392 (2009-04-09)
Polyols and sulfate esters have recently been identified in the secondary organic aerosol (SOA) formed in the photooxidation of biogenic hydrocarbons both in the laboratory and under ambient atmospheric conditions. In the present study, the potential role of the reactions
C de Meester et al.
Journal of applied toxicology : JAT, 2(6), 284-288 (1982-12-01)
The compound 2,3-epoxybutane (2,3-EB) is a direct mutagen for the base-pair-substitution-sensitive strains TA 1530, TA 1535 and TA 100, in the absence and in the presence of metabolic activation by liver S9-mix. Under the same experimental conditions, the 2-methyl derivative
C de Meester
Toxicology letters, 21(3), 255-262 (1984-06-01)
The mutagenicity of 2,3- epoxybutane (2,3-EB) towards Salmonella FFphimurium TA1530 is increased by rat liver S9 mix. This enhancement can be induced by Aroclor 1254 (ARO) or phenobarbitone (PB) pretreatment. Comparative assays with purified subcellular liver fractions demonstrated that cytosol
P Castelain et al.
Mutagenesis, 8(5), 387-393 (1993-09-01)
Four structurally related aliphatic epoxides (1,2-epoxypropane, 1,2-epoxyisobutane, cis- and trans-2,3-epoxybutane) have been tested in the Salmonella/microsome assay, modified for volatile substances, using the strains TA1535 and TA100. The aim of the study was to evaluate the effect of methylation on

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