Source:http://linkedlifedata.com/resource/umls/id/C0008722
MSH: 1,2-Benzphenanthrenes. POLYCYCLIC COMPOUNDS obtained from coal tar.,CSP: 1,2-benzphenanthrenes; polycyclic hydrocarbons obtained from coal tar.,NCI: One of the higher aromatic hydrocarbons of coal tar, allied to naphthalene and anthracene. It is a white crystalline substance, C18H12, of strong blue fluorescence, but generally colored yellow by impurities.