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Topic summary

Dioxolane

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Names Preferred IUPAC name
1,3-Dioxolane
Systematic IUPAC name
1,3-Dioxacyclopentane
Other names
Dioxolane
5-Crown-2
Formal glycol
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.010.422EC Number
  • 211-463-5
UNII
UN number1166
  • InChI=1S/C3H6O2/c1-2-4-5-3-1/h1-3H2
    Key: SNQXJPARXFUULZ-UHFFFAOYSA-N
  • InChI=1/C3H6O2/c1-2-4-5-3-1/h1-3H2
    Key: SNQXJPARXFUULZ-UHFFFAOYAS
  • O1CCOC1
Properties C3H6O2Molar mass74.08 g/mol Density1.06 g/cm Melting point−95 °C (−139 °F; 178 K) Boiling point75 °C (167 °F; 348 K) Hazards GHS labelling: DangerH225P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Dioxolane is a heterocyclicacetal with the chemical formula (CH2)2O2CH2. It is related to tetrahydrofuran (THF) by replacement of the methylene group (CH2) at the 3-position with an oxygen atom. The corresponding saturated 6-membered C4O2 rings are called dioxanes. The isomeric 1,2-dioxolane (wherein the two oxygen centers are adjacent) is a peroxide. 1,3-dioxolane is used as a solvent and as a comonomer in polyacetals.

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