• 研究2-乙基-3-基-6-苯基-4(1H)-吡啶酮(HPP自由基超氧阴离子自由基的影响。

    The effects of 2-ethyl-3-hydroxy-6-phenylthio-4(1H)-pyridinone (HPP) on hydroxyl radical and superoxide anion radical scavenging activity was studied.

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  • 目的本文研究了乙醛主要原料合成乙醛以乙醛肟为原料合成甲基乙醛肟的工艺。

    OBJECTIVE acetaldoxime was prepared by using acetaldehyde and hydroxylamine sulfate as main materials then methylthio acetaldoxime was synthesized by using the former products as main material.

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  • 目的本文研究了乙醛主要原料合成乙醛以乙醛肟为原料合成甲基乙醛肟的工艺。

    OBJECTIVE acetaldoxime was prepared by using acetaldehyde and hydroxylamine sulfate as main materials then methylthio acetaldoxime was synthesized by using the former products as main material.

    youdao

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