“usnic acid”的概念、定义、翻译、参考文献-科学参考

单词	usnic acid
释义	usnic acid [`ǝs·nik `as·ǝd] ^BIOCHEMISTRY C₁₈H₁₆O₇ Yellow crystals, insoluble in water, slightly soluble in alcohol and ether, melts about 198°C; found in lichens; used as an antibiotic. Also known as usninic acid.
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