储存温度:-20℃;分子式:C21H22O5;分子量:354.40;;Certification:This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities).;;运输条件:in styrofoam box together with -20℃ gel packs;Commodity description:lactone;Occurrence:Notopterygium sp.;