Phenanthrene

Phenanthrene
Names
	Preferred IUPAC name Phenanthrene
Identifiers
CAS Number	85-01-8 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1905428
ChEBI	CHEBI:28851 ;
ChemSpider	970 ;
ECHA InfoCard	100.001.437
EC Number	266-028-2;
Gmelin Reference	28699
KEGG	C11422 ;
MeSH	C031181
PubChem CID	995;
UNII	448J8E5BST ;
CompTox Dashboard (EPA)	DTXSID6024254 ;
	InChI InChI=1S/C14H10/c1-3-7-13-11(5-1)9-10-12-6-2-4-8-14(12)13/h1-10H Key: YNPNZTXNASCQKK-UHFFFAOYSA-N ; InChI=1/C14H10/c1-3-7-13-11(5-1)9-10-12-6-2-4-8-14(12)13/h1-10H Key: YNPNZTXNASCQKK-UHFFFAOYAC;
	SMILES C1=CC=C2C(=C1)C=CC3=CC=CC=C32;
Properties
Chemical formula	C14H10
Molar mass	178.234 g·mol−1
Appearance	Colorless solid
Density	1.18 g/cm3
Melting point	101 °C (214 °F; 374 K)
Boiling point	332 °C (630 °F; 605 K)
Solubility in water	1.6 mg/L
Magnetic susceptibility (χ)	−127.9·10−6 cm3/mol
Hazards
NFPA 704 (fire diamond)	1 1 0
Flash point	171 °C (340 °F; 444 K)
Structure
Point group	C2v
Dipole moment	0 D
	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

Phenanthrene is a polycyclic aromatic hydrocarbon (PAH) with formula C₁₄H₁₀, consisting of three fused benzene rings. It is a colorless, crystal-like solid, but can also appear yellow. Phenanthrene is used to make dyes, plastics, pesticides, explosives, and drugs. It has also been used to make bile acids, cholesterol and steroids.

Phenanthrene occurs naturally and also is a man-made chemical. Commonly, humans are exposed to phenanthrene through inhalation of cigarette smoke, but there are many routes of exposure. Animal studies have shown that phenanthrene is a potential carcinogen. However, according to IARC, it is not identified as a probable, possible or confirmed human carcinogen.

Phenanthrene's three fused rings are angled as in the phenacenes, rather than straight as in the acenes. The compounds with a phenanthrene skeleton but with nitrogen atoms in place of CH sites are known as phenanthrolines.