(2.2)Paracyclophane

(2.2)Paracyclophane
Names
	Preferred IUPAC name 1,4(1,4)-Dibenzenacyclohexaphane
	Other names [2.2](1,4)Cyclophane; 1,4-Carbophane; Cyclobis(benzene-1,4-dimethylene); Parylene dimer; Di-p-xylylene
Identifiers
CAS Number	1633-22-3 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL3278516;
ChemSpider	66818;
ECHA InfoCard	100.015.132
EC Number	216-644-2;
PubChem CID	74210;
CompTox Dashboard (EPA)	DTXSID9061835 ;
	InChI InChI=1S/C16H16/c1-2-14-4-3-13(1)9-10-15-5-7-16(8-6-15)12-11-14/h1-8H,9-12H2 Key: OOLUVSIJOMLOCB-UHFFFAOYSA-N;
	SMILES C=1C=C2C=CC1CCC3=CC=C(C=C3)CC2;
Properties
Chemical formula	C16H16
Molar mass	208.304 g·mol−1
Appearance	White solid
Density	1.242 g/cm3 (260 K)
Melting point	285 °C (545 °F; 558 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H317, H373
Precautionary statements	P260, P272, P280, P302+P352, P319, P321, P333+P317, P362+P364, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

[2.2]Paracyclophane is a cyclophane that is applied in bio- and materials science. It was first synthesized by Brown and Farthing in 1949 by pyrolyzing para-xylene in the gas phase under low pressure.