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    甲酰肼
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    Formic acid [1-ethoxy-eth-(E)-ylidene]-hydrazide
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    Formic acid [1-ethoxy-1-phenyl-meth-(E)-ylidene]-hydrazide
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    ethyl p-methylbenzoateformylhydrazone
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    Formic acid [1-ethoxy-2-phenyl-eth-(E)-ylidene]-hydrazide
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