4-[4-(trifluoromethyl)phenyl]but-3-yn-2-one

1-(3-chloro-6-nitroindazol-1-yl)ethanone

6-(乙酰氨基)-2-萘磺酸

acetic acid,hex-5-yn-1-ol

2-[bis(dimethylamino)methylidene]-3-oxobutanenitrile