"" . "2009-07-06 15:41:29.0" . "1" . "false" . "1" . . "SDN:P07::CF12N217" . "mass_concentration_of_alpha_pinene_in_air"@en . . . "SDN:P07::CF12N217" . . . "SDN:P07::CF12N217" . "accepted"@en . . . "Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for alpha_pinene is C10H16. The IUPAC name for alpha-pinene is (1S,5S)-2,6,6-trimethylbicyclo[3.1.1]hept-2-ene."@en . . "2009-07-06 15:41:29.0" .