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单词 θ69412
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the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > cyclic hydrocarbons > derivatives (1)
pyran1904

Each of two unsaturated, heterocyclic compounds having the formula C5H6O, whose molecules have a six-membered ring consisting of five carbon atoms…

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更新时间:2025/1/11 18:27:52