3-hydroxyiminooctan-2-one

1-oxido-1,2,4-benzotriazin-1-ium

2,3-戊烷二酮 3-肟

methyl (2E)-2-cyano-2-hydroxyiminoacetate

3,4-dimethyl-5-(4-methylpyridin-2-yl)-1,2-oxazole