title: On the quantitative determination of chamazulene and prochamazulenes in essential oils and crude drugs from yarrow (Achillea sp.--Compositae). II.: A new colorimetric method of high sensitivity for determination of chamazulene in the essential oils.
mesh_terms: D052176:Azulenes; D001547:Benzaldehydes; D003124:Colorimetry; D003508:Cycloheptanes / Q000032:analysis*; D003517:Cyclopentanes / Q000032:analysis; D007202:Indicators and Reagents; D009822:Oils, Volatile / Q000032:analysis
chemical_list: D052176:Azulenes; D001547:Benzaldehydes; D003508:Cycloheptanes; D003517:Cyclopentanes; D007202:Indicators and Reagents; D009822:Oils, Volatile; C013872:chamazulene