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单词
umbellic acid
释义
umbellic acid
noun
Etymology:
umbellic
from
umbell-
(in
umbelliferone
) +
-ic
:
an acid C
6
H
3
(OH)
2
CH . CHCO
2
H formed as a yellow powder by hydrolysis of umbelliferone; 2,4-dihydroxy-cinnamic acid
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更新时间:2025/12/8 23:54:48