"2009-07-06 15:41:29.0" . "SDN:P07::CF12N14" . "1" . "SDN:P07::CF12N14" . "atmosphere_mass_content_of_benzene"@en . "1" . . "\"Content\" indicates a quantity per unit area. The \"atmosphere content\" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for benzene is C6H6. Benzene is the simplest aromatic hydrocarbon and has a ring structure consisting of six carbon atoms joined by alternating single and double chemical bonds. Each carbon atom is additionally bonded to one hydrogen atom. There are standard names that refer to aromatic_compounds as a group, as well as those for individual species."@en . . . . . "SDN:P07::CF12N14" . . . "" . "2009-07-06 15:41:29.0" . "accepted"@en . "false" . .