1-(2-carbamylethyl)-1,1-dimethylhydrazinium chloride

环氧乙烷

甲醛

2-ethyl-2-phenyl-3,4-dihydropyrazol-2-ium-5-amine,iodide

3-amino-1-methyl-1-phenyl-4,5-dihydropyrazol-1-ium iodide