12-Crown-4
Appearance
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Names | |
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IUPAC name
1,4,7,10-tetraoxacyclododecane
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Other names
12-crown-4, Lithium Ionophore V
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.005.488 |
CompTox Dashboard (EPA)
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Properties | |
C8H16O4 | |
Molar mass | 176.21 |
Density | 1.089 g/mL at 25 deg C |
Melting point | 16 deg C |
Boiling point | 61-70 deg C/0.5 mm Hg |
Hazards | |
Flash point | 113 deg C |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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12-crown-4, also called 1,4,7,10-tetraoxacyclododecane and Lithium Ionophore V, is a crown ether with the formula C8H16O4. It is a cyclic tetramer of ethylene oxide which is specific for the lithium cation:
References
- Sigma-Aldrich Handbook of Fine Chemicals, 2007, page 768.
See also
- Crown ether
- Cyclen, a similar molecule with N atoms (aza groups) instead of O atoms (ethers)