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单词 pyridone
释义 pyr·i·done
\ˈpirəˌdōn\ noun
(-s)
Etymology: International Scientific Vocabulary pyrid- + -one
: any of several isomeric carbonyl compounds C5H5NO derived from pyridine: as
 a. : the crystalline alpha isomer — called also 2-pyridone, 2(1H)-pyridone
 b. : the crystalline gamma isomer — called also 4-pyridone, 4(1H)-pyridone
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