3,4-Dihydropyran3,4-Dihydropyran (DHP) is a heterocyclic compound with the formula C5H8O. The six-membered C5O ring has the unsaturation adjacent to oxygen. The isomeric 3,6-dihydropyran has a methylene separating the double bond and oxygen. Read from the Chembox of the Wikipedia article 3,4-Dihydropyran, revision 1380028812.

Property

Value

Formula

C5H8O, 84.12 g/mol

Melting point

-70 °C

Boiling point

86 °C

Density

0.922 g/cm³

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