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8.20551

Sigma-Aldrich

1,2-Epoxybutane

for synthesis

Synonym(s):

1,2-Epoxybutane, Ethyloxirane, 1,2-Butylene oxide

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About This Item

Empirical Formula (Hill Notation):
C4H8O
CAS Number:
106-88-7
Molecular Weight:
72.11
MDL number:
MFCD00005153
UNSPSC Code:
12352005
EC Index Number:
203-438-2
NACRES:
NA.22

vapor pressure

1005 hPa ( 63 °C)

Quality Level

200

assay

≥99.0% (GC)

form

liquid

autoignition temp.

370 °C

potency

500 mg/kg LD50, oral (Rat)
1743 mg/kg LD50, skin (Rabbit)

expl. lim.

1.7-19 % (v/v)

pH

7 (20 °C, 50 g/L in H2O)

bp

63 °C/1013 hPa

mp

-130 °C

transition temp

flash point -26 °C

solubility

86.8 g/L

density

0.83 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C4H8O/c1-2-4-3-5-4/h4H,2-3H2,1H3

InChI key

RBACIKXCRWGCBB-UHFFFAOYSA-N

Application

  • Efficient catalysis of CO2 cycloaddition: 1,2-Epoxybutane is utilized in the synthesis of hydroxy-rich covalent organic frameworks, proving effective in catalyzing CO2 cycloaddition. This application supports environmental sustainability efforts through the conversion of carbon dioxide into useful compounds (Pang et al., 2023).
  • Strain-release reagent synthesis: Highlighting its versatility as a chemical intermediate, 1,2-Epoxybutane is used in one-pot syntheses of strain-release reagents from methyl sulfones. This research opens new avenues in synthetic chemistry for creating novel organic compounds efficiently (Jung and Lindsay, 2022).

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.830 - 0.831
Identity (IR): passes test

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

5.0 °F - closed cup

flash_point_c

-15 °C - closed cup

Certificates of Analysis (COA)

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