Chrysene

Chemical compound From Wikipedia, the free encyclopedia

Chrysene is a polycyclic aromatic hydrocarbon (PAH) with the molecular formula C
18H
12[4] that consists of four fused benzene rings. It is a natural constituent of coal tar, from which it was first isolated and characterized. It is also found in creosote at levels of 0.5–6 mg/kg.[5]

Quick facts Names, Identifiers ...
Chrysene[1]
Skeletal structure
Skeletal structure
Ball-and-stick model of the chrysene molecule
Names
Preferred IUPAC name
Chrysene[2]
Other names
1,2-Benzophenanthrene; 1,2-Benzphenanthrene; Benzo[a]phenanthrene; NSC 6175; [4]Phenacene
Identifiers
3D model (JSmol)
1909297
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.005.386 Edit this at Wikidata
EC Number
  • 205-923-4
262600
KEGG
RTECS number
  • GC0700000
UNII
  • InChI=1S/C18H12/c1-3-7-15-13(5-1)9-11-18-16-8-4-2-6-14(16)10-12-17(15)18/h1-12H checkY
    Key: WDECIBYCCFPHNR-UHFFFAOYSA-N checkY
  • InChI=1/C18H12/c1-3-7-15-13(5-1)9-11-18-16-8-4-2-6-14(16)10-12-17(15)18/h1-12H
    Key: WDECIBYCCFPHNR-UHFFFAOYAK
  • c1ccc2c(c1)ccc3c2ccc4c3cccc4
Properties
C18H12
Molar mass 228.294 g·mol−1
Appearance white solid
Density 1.274 g/cm3
Melting point 254 °C (489 °F; 527 K)
Boiling point 448 °C (838 °F; 721 K)
Insoluble
Solubility in ethanol 1 g/1300 mL[3]
−166.67·10−6 cm3/mol
Related compounds
Related PAHs
 Pyrene, Tetracene, Triphenylene
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The name "chrysene" originates from Greek Χρύσoς (chrysos), meaning "gold", and is due to the golden-yellow color of the crystals of the hydrocarbon, thought to be the proper color of the compound at the time of its isolation and characterization. However, high purity chrysene is colorless, the yellow hue being due to the traces of its yellow-orange isomer tetracene, which cannot be separated easily.

Occurrence

Chrysene is a constituent of tobacco smoke.[6]

Safety

As with other PAHs, chrysene is suspected to be a human carcinogen. Some evidence suggests that it causes cancer in laboratory animals,[7] but chrysene is often contaminated with more strongly carcinogenic compounds. Chrysene is estimated to have about 1% of the toxicity of benzo(a)pyrene.[8]

Derivatives

Derivatives of chrysene include tetrahydrochrysene and 2,8-dihydroxyhexahydrochrysene, which are estrogenic compounds. The experimental cancer drug crisnatol is a derivative of chrysene.

See also

References

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