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|Section2= }} Umbelliferone, also known as 7-hydroxycoumarin, hydrangine, skimmetine, and ''beta''-umbelliferone, is a widespread natural product of the coumarin family. It absorbs ultraviolet light strongly at several wavelengths. Despite several indications that this chemical is photomutagenic, it is used in sunscreens. Umbelliferone has been reported to have antioxidant properties.〔(【引用サイトリンク】title= UMBELLIFERONE )〕 It is a yellowish-white crystalline solid that has a slight solubility in hot water, but high solubility in ethanol. == Natural occurrences and name == Umbelliferone's name is from the umbelliferae family of plants, and the plant family in turn was named for their umbrella-shaped inflorescences, each called an umbel. Umbelliferone occurs in many familiar plants from the Apiaceae (Umbelliferae) family such as carrot, coriander and garden angelica, as well as in plants from other families, such as the mouse-ear hawkweed (''Hieracium pilosella'', Asteraceae) or the bigleaf hydrangea (''Hydrangea macrophylla'', Hydrangeaceae, under the name hydrangine). It is one of the components of asafoetida, the dried latex from the giant fennel (''Ferula communis''). It is also found in ''Justicia pectoralis'' (Acanthaceae). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「umbelliferone」の詳細全文を読む スポンサード リンク
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