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单词
usnic acid
释义
us·nic acid
\ˈəsnik-\
noun
Etymology:
New Latin
Usnea
+ English
-ic
:
a yellow crystalline antibiotic C
18
H
16
O
7
that is a heterocyclic keto phenol related to dibenzo-furan and is obtained from various lichens (as of the genera
Usnea
and
Parmelia
)
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更新时间:2025/7/30 9:07:22