Pentachlorobenzene

Pentachlorobenzene
Names
	Preferred IUPAC name Pentachlorobenzene
	Other names PeCB
Identifiers
CAS Number	608-93-5 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1911550
ChEBI	CHEBI:47136 ;
ChEMBL	ChEMBL44628 ;
ChemSpider	21106570 ;
ECHA InfoCard	100.009.248
EC Number	602-074-00-5;
Gmelin Reference	51144
KEGG	C18141;
PubChem CID	11855;
RTECS number	DA6640000;
UNII	D62GWO6832 ;
CompTox Dashboard (EPA)	DTXSID7024247 ;
	InChI InChI=1S/C6HCl5/c7-2-1-3(8)5(10)6(11)4(2)9/h1H Key: CEOCDNVZRAIOQZ-UHFFFAOYSA-N ; InChI=1/C6HCl5/c7-2-1-3(8)5(10)6(11)4(2)9/h1H Key: CEOCDNVZRAIOQZ-UHFFFAOYAV;
	SMILES c1c(Cl)c(Cl)c(Cl)c(Cl)c1Cl;
Properties
Chemical formula	C6HCl5
Molar mass	250.32 g·mol−1
Appearance	White or colorless crystals
Density	1.8 g/cm3
Melting point	86 °C (187 °F; 359 K)
Boiling point	275 to 277 °C (527 to 531 °F; 548 to 550 K)
Solubility in water	0.68 mg/L
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H228, H302, H410
Precautionary statements	P210, P240, P241, P264, P270, P273, P280, P301+P312, P330, P370+P378, P391, P501
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	rat: 1080 mg/kg; mouse: 1175 mg/kg
	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

Pentachlorobenzene (PeCB) is an aryl chloride and a five-substituted chlorobenzene with the molecular formula C₆HCl₅ which is a chlorinated aromatic hydrocarbon. It consists of a benzene ring substituted with five chlorine atoms. PeCB was once used industrially for a variety of uses, but because of environmental concerns there are currently no large scale uses of PeCB. Pentachlorobenzene is a known persistent organic pollutant (POP) and banned globally by the Stockholm Convention on Persistent Organic Pollutants in 2009.