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Triterpenes that derive from LANOSTEROL by a shift of the C19 methyl to the C9 position. They are found in seeds and roots of CUCURBITACEAE and other plants and are noted for intense bitterness.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D054728 · MeSH 2026。
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