Dewar benzene

Dewar benzene
	; The conjoined cyclobutene rings of Dewar benzene form an obtuse angle.
Names
	Preferred IUPAC name Bicyclo[2.2.0]hexa-2,5-diene
Identifiers
CAS Number	5649-95-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	89242 ;
PubChem CID	98808;
UNII	885QNL8RTB ;
CompTox Dashboard (EPA)	DTXSID00205033 ;
	InChI InChI=1S/C6H6/c1-2-6-4-3-5(1)6/h1-6H Key: CTLSARLLLBZBRV-UHFFFAOYSA-N ; InChI=1/C6H6/c1-2-6-4-3-5(1)6/h1-6H Key: CTLSARLLLBZBRV-UHFFFAOYAO;
	SMILES C\1=C\C2/C=C\C/12;
Properties
Chemical formula	C6H6
Molar mass	78.1 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Dewar benzene (also spelled dewarbenzene) or bicyclo[2.2.0]hexa-2,5-diene is a bicyclic isomer of benzene with the molecular formula C₆H₆. The compound is named after James Dewar who included this structure in a list of possible C₆H₆ structures in 1869. However, he did not propose it as the structure of benzene, and in fact he supported the correct structure previously proposed by August Kekulé in 1865.

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