ethyl N-(2-hydroxyphenyl)carbamate

3,6-二氨基-1,2-二氢-1,2,4,5-四嗪盐酸盐

3,5-二甲基吡唑-1-羰酰胺

3,5-dimethylpyrazolidine-3,5-diol

3,5-dimethyl-4,5-dihydro-1H-pyrazol-5-ol