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For the language, see North Picene and South Picene.
Chemical name Dibenzo[a,i]phenanthrene
Other names Picene
β,β-Binaphthylene ethene
Chemical formula C22H14
Molecular mass 278.33 g/mol
CAS number [213-46-7]
Density  ? g/cm3
Melting point 366-367 °C
Boiling point 518-520 °C
SMILES c12ccccc1c3c(c(ccc5c4cccc5)c4cc3)cc2
Disclaimer and references

Picene is a hydrocarbon found in the pitchy residue obtained in the distillation of peat tar and of petroleum. This is distilled to dryness and the distillate repeatedly recrystallized from cymene. It may be synthetically prepared by the action of anhydrous aluminium chloride on a mixture of naphthalene and 1,2-dibromoethane, or by distilling a-dinaphthostilbene. It crystallizes in large colorless plates which possess a blue fluorescence. It is soluble in concentrated sulfuric acid with a green color. Chromic acid in glacial acetic acid solution oxidizes it to picene-quinone, picene-quinone carboxylic acid, and finally to phthalic acid.


  • Merck Index, 11th Edition, 7368.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Picene". A list of authors is available in Wikipedia.
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