Tetraphenylcyclopentadienone

Tetraphenylcyclopentadienone
	Perspective view, showing the canted phenyl rings
Names
	Preferred IUPAC name 2,3,4,5-Tetraphenylcyclopenta-2,4-dien-1-one
	Other names Tetracyclone, TPCPD, Cyclone
Identifiers
CAS Number	479-33-4 ;
3D model (JSmol)	Interactive image;
ChemSpider	61382 ;
ECHA InfoCard	100.006.847
PubChem CID	68068;
UNII	E8CT23P8WP ;
CompTox Dashboard (EPA)	DTXSID1060059 ;
	InChI InChI=1S/C29H20O/c30-29-27(23-17-9-3-10-18-23)25(21-13-5-1-6-14-21)26(22-15-7-2-8-16-22)28(29)24-19-11-4-12-20-24/h1-20H Key: PLGPSDNOLCVGSS-UHFFFAOYSA-N ; InChI=1/C29H20O/c30-29-27(23-17-9-3-10-18-23)25(21-13-5-1-6-14-21)26(22-15-7-2-8-16-22)28(29)24-19-11-4-12-20-24/h1-20H Key: PLGPSDNOLCVGSS-UHFFFAOYAO;
	SMILES O=C2C(=C(/C(=C2/c1ccccc1)c3ccccc3)c4ccccc4)\c5ccccc5;
Properties
Chemical formula	C29H20O
Molar mass	384.478 g·mol−1
Appearance	black solid
Melting point	219 to 220 °C (426 to 428 °F; 492 to 493 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Tetraphenylcyclopentadienone is an organic compound with the formula (C₆H₅C)₄C₄C=O. It is classified as a cyclic dienone. It is a dark purple to black crystalline solid that is soluble in organic solvents. It is an easily made building block for many organic and organometallic compounds.