(E)-3-pyrazin-2-ylprop-2-enoic acid

3-(2-sulfanylidene-1,3-dihydroimidazol-4-yl)prop-2-enoic acid

bis(pyren-1-ylmethyl) propanedioate

3-(3-喹啉)丙烯酸

4,7-dihydroxy-8-methylchromen-2-one