title: Isoprene, an endogenous constituent of human alveolar air with a diurnal pattern of excretion.
mesh_terms: D000328:Adult; D000388:Air / Q000032:analysis*; D002070:Butadienes / Q000378:metabolism*; D002849:Chromatography, Gas; D002940:Circadian Rhythm; D005260:Female; D045782:Hemiterpenes; D006801:Humans; D008297:Male; D011650:Pulmonary Alveoli; D012119:Respiration
chemical_list: D002070:Butadienes; D045782:Hemiterpenes; C005059:isoprene