Dibenz(a,h)anthracene

The correct title of this article is Dibenz[a,h]anthracene. The substitution or omission of any < > [ ] { } is because of technical restrictions.

Dibenz[a,h]anthracene

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Identifiers
CAS Number	53-70-3
ChemSpider	5678
Jmol 3D model	Interactive image
InChI InChI=1/C22H14/c1-3-7-19-15(5-1)9-11-17-14-22-18(13-21(17)19)12-10-16-6-2-4-8-20(16)22/h1-14H
SMILES c1ccc2c(c1)ccc3c2cc4ccc5ccccc5c4c3
Properties
Chemical formula	C22H14
Molar mass	278.3466
Density	1.232 g/cm3
Melting point	262 °C (504 °F; 535 K)
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Dibenz[a,h]anthracene is an organic compound with the chemical formula C₂₂H₁₄. It is a polycyclic aromatic hydrocarbon made of five fused benzene rings. It is a fused five ringed, cyclopenta, PAHs compound which is common as a pollutant of smoke and oils. It is white to light yellow crystalline solid. It is stable and highly genotoxic in bacterial and mammalian cell systems, as it intercalates into DNA and causes mutations.

In February 2014, NASA announced a greatly upgraded database for tracking polycyclic aromatic hydrocarbons (PAHs), including Dibenz[a,h]anthracene, in the universe. According to scientists, more than 20% of the carbon in the universe may be associated with PAHs, possible starting materials for the formation of life. PAHs seem to have been formed shortly after the Big Bang, are widespread throughout the universe, and are associated with new stars and exoplanets.